394958025 has 240 divisors, whose sum is σ = 972259200. Its totient is φ = 153446400.

The previous prime is 394958021. The next prime is 394958063. The reversal of 394958025 is 520859493.

394958025 is a `hidden beast` number, since 3 + 9 + 49 + 580 + 25 = 666.

It is not a de Polignac number, because 394958025 - 2² = 394958021 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (394958021) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 2650651 + ... + 2650799.

It is an arithmetic number, because the mean of its divisors is an integer number (4051080).

Almost surely, 2^394958025 is an apocalyptic number.

394958025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

394958025 is an abundant number, since it is smaller than the sum of its proper divisors (577301175).

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

394958025 is a wasteful number, since it uses less digits than its factorization.

394958025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 394958025 is about 19873.5508905681. The cubic root of 394958025 is about 733.6974012970.

The spelling of 394958025 in words is "three hundred ninety-four million, nine hundred fifty-eight thousand, twenty-five".