400400700674 has 32 divisors (see below), whose sum is σ = 650054160000. Its totient is φ = 183873199104.

The previous prime is 400400700659. The next prime is 400400700701. The reversal of 400400700674 is 476007004004.

It is a super-2 number, since 2×400400700674² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 400400700674.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4143197 + ... + 4238735.

It is an arithmetic number, because the mean of its divisors is an integer number (20314192500).

Almost surely, 2^400400700674 is an apocalyptic number.

400400700674 is a deficient number, since it is larger than the sum of its proper divisors (249653459326).

400400700674 is a wasteful number, since it uses less digits than its factorization.

400400700674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96362.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 400400700674 its reverse (476007004004), we get a palindrome (876407704678).

The spelling of 400400700674 in words is "four hundred billion, four hundred million, seven hundred thousand, six hundred seventy-four".