401403925 has 24 divisors (see below), whose sum is σ = 548513504. Its totient is φ = 289517760.

The previous prime is 401403917. The next prime is 401403953. The reversal of 401403925 is 529304104.

It is not a de Polignac number, because 401403925 - 2³ = 401403917 is a prime.

It is a super-2 number, since 2×401403925² = 322250222010811250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401403893 and 401403902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387 + ... + 28336.

Almost surely, 2^401403925 is an apocalyptic number.

It is an amenable number.

401403925 is a deficient number, since it is larger than the sum of its proper divisors (147109579).

401403925 is a wasteful number, since it uses less digits than its factorization.

401403925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28789 (or 28784 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 401403925 is about 20035.0673819680. The cubic root of 401403925 is about 737.6673105039.

The spelling of 401403925 in words is "four hundred one million, four hundred three thousand, nine hundred twenty-five".