400426130 has 64 divisors (see below), whose sum is σ = 800966880. Its totient is φ = 143210496.

The previous prime is 400426129. The next prime is 400426157. The reversal of 400426130 is 31624004.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1745041 + 398681089 = 1321^2 + 19967^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 612884 + ... + 613536.

Almost surely, 2^400426130 is an apocalyptic number.

400426130 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

400426130 is a wasteful number, since it uses less digits than its factorization.

400426130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400426130 is about 20010.6504142169. The cubic root of 400426130 is about 737.0678529274.

The spelling of 400426130 in words is "four hundred million, four hundred twenty-six thousand, one hundred thirty".