2040342400 has 48 divisors (see below), whose sum is σ = 5040291240. Its totient is φ = 816135680.

The previous prime is 2040342371. The next prime is 2040342439. The reversal of 2040342400 is 42430402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315604 + ... + 322003.

Almost surely, 2^2040342400 is an apocalyptic number.

2040342400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040342400 is an abundant number, since it is smaller than the sum of its proper divisors (2999948840).

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

2040342400 is an equidigital number, since it uses as much as digits as its factorization.

2040342400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637631 (or 637614 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2040342400 is about 45170.1494352188. The cubic root of 2040342400 is about 1268.3360936409.

Adding to 2040342400 its reverse (42430402), we get a palindrome (2082772802).

The spelling of 2040342400 in words is "two billion, forty million, three hundred forty-two thousand, four hundred".