545674920 has 64 divisors (see below), whose sum is σ = 1870888320. Its totient is φ = 124725504.

The previous prime is 545674903. The next prime is 545674949. The reversal of 545674920 is 29476545.

It is a super-2 number, since 2×545674920² = 595522236634012800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323967 + ... + 325646.

It is an arithmetic number, because the mean of its divisors is an integer number (29232630).

Almost surely, 2^545674920 is an apocalyptic number.

It is an amenable number.

545674920 is an abundant number, since it is smaller than the sum of its proper divisors (1325213400).

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

545674920 is a wasteful number, since it uses less digits than its factorization.

545674920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649634 (or 649630 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 545674920 is about 23359.6857855580. The cubic root of 545674920 is about 817.1679617441.

The spelling of 545674920 in words is "five hundred forty-five million, six hundred seventy-four thousand, nine hundred twenty".