400262552316 has 144 divisors (see below), whose sum is σ = 1167150007296. Its totient is φ = 114516000000.

The previous prime is 400262552311. The next prime is 400262552351. The reversal of 400262552316 is 613255262004.

400262552316 is a `hidden beast` number, since 4 + 0 + 0 + 2 + 625 + 5 + 23 + 1 + 6 = 666.

It is a super-2 number, since 2×400262552316² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400262552311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105691 + ... + 900941.

It is an arithmetic number, because the mean of its divisors is an integer number (8105208384).

Almost surely, 2^400262552316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400262552316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583575003648).

400262552316 is an abundant number, since it is smaller than the sum of its proper divisors (766887454980).

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

400262552316 is a wasteful number, since it uses less digits than its factorization.

400262552316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795344 (or 795339 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 400262552316 in words is "four hundred billion, two hundred sixty-two million, five hundred fifty-two thousand, three hundred sixteen".