400526425 has 12 divisors (see below), whose sum is σ = 534857260. Its totient is φ = 295773120.

The previous prime is 400526411. The next prime is 400526431. The reversal of 400526425 is 524625004.

It can be written as a sum of positive squares in 6 ways, for example, as 646416 + 399880009 = 804^2 + 19997^2 .

It is not a de Polignac number, because 400526425 - 2⁷ = 400526297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400526393 and 400526402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615870 + ... + 616519.

Almost surely, 2^400526425 is an apocalyptic number.

It is an amenable number.

400526425 is a deficient number, since it is larger than the sum of its proper divisors (134330835).

400526425 is a wasteful number, since it uses less digits than its factorization.

400526425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232412 (or 1232407 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 400526425 is about 20013.1562977957. The cubic root of 400526425 is about 737.1293857493.

The spelling of 400526425 in words is "four hundred million, five hundred twenty-six thousand, four hundred twenty-five".