40344534400 has 48 divisors (see below), whose sum is σ = 99663615540. Its totient is φ = 16137812480.

The previous prime is 40344534371. The next prime is 40344534407. The reversal of 40344534400 is 443544304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344534407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6300634 + ... + 6307033.

Almost surely, 2^40344534400 is an apocalyptic number.

40344534400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40344534400 is an abundant number, since it is smaller than the sum of its proper divisors (59319081140).

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

40344534400 is a wasteful number, since it uses less digits than its factorization.

40344534400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607691 (or 12607674 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 31.

The spelling of 40344534400 in words is "forty billion, three hundred forty-four million, five hundred thirty-four thousand, four hundred".