400746884860 has 24 divisors (see below), whose sum is σ = 961792524000. Its totient is φ = 137398931904.

The previous prime is 400746884851. The next prime is 400746884911. The reversal of 400746884860 is 68488647004.

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, 1431238735 + ... + 1431239014.

It is an arithmetic number, because the mean of its divisors is an integer number (40074688500).

Almost surely, 2^400746884860 is an apocalyptic number.

It is an amenable number.

400746884860 is an abundant number, since it is smaller than the sum of its proper divisors (561045639140).

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

400746884860 is a wasteful number, since it uses less digits than its factorization.

400746884860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862477765 (or 2862477763 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

It can be divided in two parts, 400746 and 884860, that added together give a triangular number (1285606 = T₁₆₀₃).

The spelling of 400746884860 in words is "four hundred billion, seven hundred forty-six million, eight hundred eighty-four thousand, eight hundred sixty".