395090000 has 50 divisors (see below), whose sum is σ = 956576610. Its totient is φ = 158032000.

The previous prime is 395089991. The next prime is 395090027. The reversal of 395090000 is 90593.

It can be written as a sum of positive squares in 5 ways, for example, as 214563904 + 180526096 = 14648^2 + 13436^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×395090000² = 312192216200000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9755 + ... + 29754.

Almost surely, 2^395090000 is an apocalyptic number.

It is an amenable number.

395090000 is an abundant number, since it is smaller than the sum of its proper divisors (561486610).

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

395090000 is an equidigital number, since it uses as much as digits as its factorization.

395090000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39537 (or 39516 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 395090000 is about 19876.8709811177. The cubic root of 395090000 is about 733.7791137197.

The spelling of 395090000 in words is "three hundred ninety-five million, ninety thousand".