146899620 has 288 divisors, whose sum is σ = 549739008. Its totient is φ = 31021056.

The previous prime is 146899603. The next prime is 146899633. The reversal of 146899620 is 26998641.

It is a happy number.

146899620 is a `hidden beast` number, since 14 + 6 + 8 + 9 + 9 + 620 = 666.

It is a super-2 number, since 2×146899620² = 43158996712288800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1072192 + ... + 1072328.

It is an arithmetic number, because the mean of its divisors is an integer number (1908816).

Almost surely, 2^146899620 is an apocalyptic number.

146899620 is a gapful number since it is divisible by the number (10) 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 146899620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274869504).

146899620 is an abundant number, since it is smaller than the sum of its proper divisors (402839388).

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

146899620 is a wasteful number, since it uses less digits than its factorization.

146899620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 146899620 is about 12120.2153446216. The cubic root of 146899620 is about 527.6430524774.

The spelling of 146899620 in words is "one hundred forty-six million, eight hundred ninety-nine thousand, six hundred twenty".