400061522 has 16 divisors (see below), whose sum is σ = 686076480. Its totient is φ = 171390768.

The previous prime is 400061521. The next prime is 400061531. The reversal of 400061522 is 225160004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 400061494 and 400061503.

It is not an unprimeable number, because it can be changed into a prime (400061521) 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, 69893 + ... + 75399.

It is an arithmetic number, because the mean of its divisors is an integer number (42879780).

Almost surely, 2^400061522 is an apocalyptic number.

400061522 is a deficient number, since it is larger than the sum of its proper divisors (286014958).

400061522 is a wasteful number, since it uses less digits than its factorization.

400061522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705.

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

The square root of 400061522 is about 20001.5379908646. The cubic root of 400061522 is about 736.8440726226.

The spelling of 400061522 in words is "four hundred million, sixty-one thousand, five hundred twenty-two".