400084190 has 16 divisors (see below), whose sum is σ = 785620080. Its totient is φ = 145485120.

The previous prime is 400084189. The next prime is 400084207. The reversal of 400084190 is 91480004.

It is a super-2 number, since 2×400084190² = 320134718175912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818455 + ... + 1818674.

It is an arithmetic number, because the mean of its divisors is an integer number (49101255).

Almost surely, 2^400084190 is an apocalyptic number.

400084190 is a deficient number, since it is larger than the sum of its proper divisors (385535890).

400084190 is a wasteful number, since it uses less digits than its factorization.

400084190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637147.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 400084190 is about 20002.1046392623. The cubic root of 400084190 is about 736.8579892038.

The spelling of 400084190 in words is "four hundred million, eighty-four thousand, one hundred ninety".