400040130 has 64 divisors (see below), whose sum is σ = 1098862848. Its totient is φ = 91303680.

The previous prime is 400040129. The next prime is 400040143. The reversal of 400040130 is 31040004.

It is a super-2 number, since 2×400040130² = 320064211220833800, which contains 22 as substring.

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, 247204 + ... + 248816.

It is an arithmetic number, because the mean of its divisors is an integer number (17169732).

Almost surely, 2^400040130 is an apocalyptic number.

400040130 is an abundant number, since it is smaller than the sum of its proper divisors (698822718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400040130 is a wasteful number, since it uses less digits than its factorization.

400040130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 400040130 is about 20001.0032248385. The cubic root of 400040130 is about 736.8309389348.

Adding to 400040130 its reverse (31040004), we get a palindrome (431080134).

The spelling of 400040130 in words is "four hundred million, forty thousand, one hundred thirty".