545418400 has 36 divisors (see below), whose sum is σ = 1331504622. Its totient is φ = 218167040.

The previous prime is 545418397. The next prime is 545418413. The reversal of 545418400 is 4814545.

It can be written as a sum of positive squares in 3 ways, for example, as 253828624 + 291589776 = 15932^2 + 17076^2 .

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, 340087 + ... + 341686.

Almost surely, 2^545418400 is an apocalyptic number.

545418400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545418400 is an abundant number, since it is smaller than the sum of its proper divisors (786086222).

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

545418400 is a wasteful number, since it uses less digits than its factorization.

545418400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681793 (or 681780 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 545418400 is about 23354.1944840750. The cubic root of 545418400 is about 817.0398923425.

The spelling of 545418400 in words is "five hundred forty-five million, four hundred eighteen thousand, four hundred".