45391470 has 16 divisors (see below), whose sum is σ = 108939600. Its totient is φ = 12104384.

The previous prime is 45391453. The next prime is 45391481. The reversal of 45391470 is 7419354.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756495 + ... + 756554.

It is an arithmetic number, because the mean of its divisors is an integer number (6808725).

Almost surely, 2^45391470 is an apocalyptic number.

45391470 is an abundant number, since it is smaller than the sum of its proper divisors (63548130).

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

45391470 is a wasteful number, since it uses less digits than its factorization.

45391470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513059.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 45391470 is about 6737.3191998005. The cubic root of 45391470 is about 356.7177739479.

The spelling of 45391470 in words is "forty-five million, three hundred ninety-one thousand, four hundred seventy".