400484190 has 32 divisors (see below), whose sum is σ = 970685856. Its totient is φ = 105737600.

The previous prime is 400484111. The next prime is 400484197. The reversal of 400484190 is 91484004.

It is a super-2 number, since 2×400484190² = 320775172879912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400484197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63057 + ... + 69116.

It is an arithmetic number, because the mean of its divisors is an integer number (30333933).

Almost surely, 2^400484190 is an apocalyptic number.

400484190 is an abundant number, since it is smaller than the sum of its proper divisors (570201666).

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

400484190 is a wasteful number, since it uses less digits than its factorization.

400484190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132284.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 400484190 is about 20012.1010890911. The cubic root of 400484190 is about 737.1034750544.

The spelling of 400484190 in words is "four hundred million, four hundred eighty-four thousand, one hundred ninety".