45391886 has 16 divisors (see below), whose sum is σ = 69519600. Its totient is φ = 22221888.

The previous prime is 45391877. The next prime is 45391891. The reversal of 45391886 is 68819354.

It is a Curzon 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, 36320 + ... + 37548.

It is an arithmetic number, because the mean of its divisors is an integer number (4344975).

Almost surely, 2^45391886 is an apocalyptic number.

45391886 is a deficient number, since it is larger than the sum of its proper divisors (24127714).

45391886 is a wasteful number, since it uses less digits than its factorization.

45391886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its digits is 207360, while the sum is 44.

The square root of 45391886 is about 6737.3500725434. The cubic root of 45391886 is about 356.7188636838.

The spelling of 45391886 in words is "forty-five million, three hundred ninety-one thousand, eight hundred eighty-six".