400261052 has 24 divisors (see below), whose sum is σ = 705813696. Its totient is φ = 198606848.

The previous prime is 400261051. The next prime is 400261067. The reversal of 400261052 is 250162004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400261051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362333 + ... + 363435.

It is an arithmetic number, because the mean of its divisors is an integer number (29408904).

Almost surely, 2^400261052 is an apocalyptic number.

It is an amenable number.

400261052 is a deficient number, since it is larger than the sum of its proper divisors (305552644).

400261052 is a wasteful number, since it uses less digits than its factorization.

400261052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 400261052 is about 20006.5252355325. The cubic root of 400261052 is about 736.9665521697.

The spelling of 400261052 in words is "four hundred million, two hundred sixty-one thousand, fifty-two".