399514500 has 288 divisors, whose sum is σ = 1572689664. Its totient is φ = 82944000.

The previous prime is 399514487. The next prime is 399514513. The reversal of 399514500 is 5415993.

399514500 is a `hidden beast` number, since 3 + 99 + 514 + 50 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (399514487) and next prime (399514513).

It is a super-2 number, since 2×399514500² = 319223671420500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 345924 + ... + 347076.

It is an arithmetic number, because the mean of its divisors is an integer number (5460728).

Almost surely, 2^399514500 is an apocalyptic number.

399514500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399514500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786344832).

399514500 is an abundant number, since it is smaller than the sum of its proper divisors (1173175164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399514500 is a wasteful number, since it uses less digits than its factorization.

399514500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 399514500 is about 19987.8588147905. The cubic root of 399514500 is about 736.5080794918.

The spelling of 399514500 in words is "three hundred ninety-nine million, five hundred fourteen thousand, five hundred".