400353253000 has 32 divisors (see below), whose sum is σ = 936826614360. Its totient is φ = 160141300800.

The previous prime is 400353252989. The next prime is 400353253007. The reversal of 400353253000 is 352353004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37412070084 + 362941182916 = 193422^2 + 602446^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (400353253007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200175627 + ... + 200177626.

Almost surely, 2^400353253000 is an apocalyptic number.

400353253000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400353253000 is an abundant number, since it is smaller than the sum of its proper divisors (536473361360).

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

400353253000 is a wasteful number, since it uses less digits than its factorization.

400353253000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400353274 (or 400353260 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

The spelling of 400353253000 in words is "four hundred billion, three hundred fifty-three million, two hundred fifty-three thousand".