45251784 has 40 divisors (see below), whose sum is σ = 126748710. Its totient is φ = 15083712.

The previous prime is 45251743. The next prime is 45251797. The reversal of 45251784 is 48715254.

45251784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 44595684 + 656100 = 6678^2 + 810^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34269 + ... + 35564.

Almost surely, 2^45251784 is an apocalyptic number.

It is an amenable number.

45251784 is an abundant number, since it is smaller than the sum of its proper divisors (81496926).

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

45251784 is a wasteful number, since it uses less digits than its factorization.

45251784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69851 (or 69838 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 45251784 is about 6726.9446259056. The cubic root of 45251784 is about 356.3514813386.

The spelling of 45251784 in words is "forty-five million, two hundred fifty-one thousand, seven hundred eighty-four".