45349720 has 32 divisors (see below), whose sum is σ = 109887120. Its totient is φ = 16744320.

The previous prime is 45349673. The next prime is 45349729. The reversal of 45349720 is 2794354.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45349729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43086 + ... + 44125.

Almost surely, 2^45349720 is an apocalyptic number.

45349720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45349720 is an abundant number, since it is smaller than the sum of its proper divisors (64537400).

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

45349720 is a wasteful number, since it uses less digits than its factorization.

45349720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87235 (or 87231 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 45349720 is about 6734.2200736240. The cubic root of 45349720 is about 356.6083735440.

The spelling of 45349720 in words is "forty-five million, three hundred forty-nine thousand, seven hundred twenty".