546640400 has 30 divisors (see below), whose sum is σ = 1313304522. Its totient is φ = 218656000.

The previous prime is 546640351. The next prime is 546640427. The reversal of 546640400 is 4046645.

It can be written as a sum of positive squares in 3 ways, for example, as 17272336 + 529368064 = 4156^2 + 23008^2 .

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, 682901 + ... + 683700.

Almost surely, 2^546640400 is an apocalyptic number.

546640400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

546640400 is an abundant number, since it is smaller than the sum of its proper divisors (766664122).

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

546640400 is a wasteful number, since it uses less digits than its factorization.

546640400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366619 (or 1366608 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 546640400 is about 23380.3421702934. The cubic root of 546640400 is about 817.6496248744.

The spelling of 546640400 in words is "five hundred forty-six million, six hundred forty thousand, four hundred".