545686408 has 16 divisors (see below), whose sum is σ = 1067647680. Its totient is φ = 260980368.

The previous prime is 545686387. The next prime is 545686409. The reversal of 545686408 is 804686545.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (545686409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1482660 + ... + 1483027.

It is an arithmetic number, because the mean of its divisors is an integer number (66727980).

Almost surely, 2^545686408 is an apocalyptic number.

It is an amenable number.

545686408 is a deficient number, since it is larger than the sum of its proper divisors (521961272).

545686408 is a wasteful number, since it uses less digits than its factorization.

545686408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965716 (or 2965712 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The square root of 545686408 is about 23359.9316779823. The cubic root of 545686408 is about 817.1736962692.

The spelling of 545686408 in words is "five hundred forty-five million, six hundred eighty-six thousand, four hundred eight".