400260525 has 24 divisors (see below), whose sum is σ = 756302784. Its totient is φ = 182976000.

The previous prime is 400260521. The next prime is 400260527. The reversal of 400260525 is 525062004.

It is not a de Polignac number, because 400260525 - 2² = 400260521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400260495 and 400260504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400260521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380676 + ... + 381725.

It is an arithmetic number, because the mean of its divisors is an integer number (31512616).

Almost surely, 2^400260525 is an apocalyptic number.

It is an amenable number.

400260525 is a deficient number, since it is larger than the sum of its proper divisors (356042259).

400260525 is a wasteful number, since it uses less digits than its factorization.

400260525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762421 (or 762416 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 400260525 is about 20006.5120648253. The cubic root of 400260525 is about 736.9662287295.

The spelling of 400260525 in words is "four hundred million, two hundred sixty thousand, five hundred twenty-five".