394968525 has 48 divisors (see below), whose sum is σ = 766510464. Its totient is φ = 175668480.

The previous prime is 394968521. The next prime is 394968533. The reversal of 394968525 is 525869493.

It is not a de Polignac number, because 394968525 - 2² = 394968521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394968521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9259 + ... + 29591.

It is an arithmetic number, because the mean of its divisors is an integer number (15968968).

Almost surely, 2^394968525 is an apocalyptic number.

394968525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

394968525 is a deficient number, since it is larger than the sum of its proper divisors (371541939).

394968525 is a wasteful number, since it uses less digits than its factorization.

394968525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20390 (or 20385 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The square root of 394968525 is about 19873.8150590167. The cubic root of 394968525 is about 733.7039030465.

The spelling of 394968525 in words is "three hundred ninety-four million, nine hundred sixty-eight thousand, five hundred twenty-five".