45376640 has 32 divisors (see below), whose sum is σ = 108480060. Its totient is φ = 18150400.

The previous prime is 45376637. The next prime is 45376657. The reversal of 45376640 is 4667354.

It can be written as a sum of positive squares in 2 ways, for example, as 43138624 + 2238016 = 6568^2 + 1496^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 45376640.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34811 + ... + 36090.

Almost surely, 2^45376640 is an apocalyptic number.

45376640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45376640 is an abundant number, since it is smaller than the sum of its proper divisors (63103420).

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

45376640 is an equidigital number, since it uses as much as digits as its factorization.

45376640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70920 (or 70908 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 45376640 is about 6736.2185237713. The cubic root of 45376640 is about 356.6789215614.

The spelling of 45376640 in words is "forty-five million, three hundred seventy-six thousand, six hundred forty".