400300023312 has 120 divisors (see below), whose sum is σ = 1280629284480. Its totient is φ = 114344225280.

The previous prime is 400300023311. The next prime is 400300023439. The reversal of 400300023312 is 213320003004.

400300023312 is a `hidden beast` number, since 400 + 30 + 0 + 0 + 233 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (400300023311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4399237 + ... + 4489307.

It is an arithmetic number, because the mean of its divisors is an integer number (10671910704).

Almost surely, 2^400300023312 is an apocalyptic number.

400300023312 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400300023312 is an abundant number, since it is smaller than the sum of its proper divisors (880329261168).

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

400300023312 is a wasteful number, since it uses less digits than its factorization.

400300023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94501 (or 94492 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 400300023312 its reverse (213320003004), we get a palindrome (613620026316).

The spelling of 400300023312 in words is "four hundred billion, three hundred million, twenty-three thousand, three hundred twelve".