394025445 has 32 divisors (see below), whose sum is σ = 764173440. Its totient is φ = 191041920.

The previous prime is 394025417. The next prime is 394025497. The reversal of 394025445 is 544520493.

It is a happy number.

It is not a de Polignac number, because 394025445 - 2⁶ = 394025381 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131184 + ... + 134153.

It is an arithmetic number, because the mean of its divisors is an integer number (23880420).

Almost surely, 2^394025445 is an apocalyptic number.

It is an amenable number.

394025445 is a deficient number, since it is larger than the sum of its proper divisors (370147995).

394025445 is a wasteful number, since it uses less digits than its factorization.

394025445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265362 (or 265356 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 394025445 is about 19850.0741812216. The cubic root of 394025445 is about 733.1194742554.

The spelling of 394025445 in words is "three hundred ninety-four million, twenty-five thousand, four hundred forty-five".