399420879300 has 288 divisors, whose sum is σ = 1320098841600. Its totient is φ = 103529041920.

The previous prime is 399420879269. The next prime is 399420879313. The reversal of 399420879300 is 3978024993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 175722964 + ... + 175725236.

Almost surely, 2^399420879300 is an apocalyptic number.

399420879300 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 399420879300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660049420800).

399420879300 is an abundant number, since it is smaller than the sum of its proper divisors (920677962300).

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

399420879300 is a wasteful number, since it uses less digits than its factorization.

399420879300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 399420879300 in words is "three hundred ninety-nine billion, four hundred twenty million, eight hundred seventy-nine thousand, three hundred".