45193780 has 24 divisors (see below), whose sum is σ = 99902880. Its totient is φ = 17125920.

The previous prime is 45193751. The next prime is 45193831. The reversal of 45193780 is 8739154.

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, 59086 + ... + 59845.

It is an arithmetic number, because the mean of its divisors is an integer number (4162620).

Almost surely, 2^45193780 is an apocalyptic number.

It is an amenable number.

45193780 is an abundant number, since it is smaller than the sum of its proper divisors (54709100).

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

45193780 is a wasteful number, since it uses less digits than its factorization.

45193780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118959 (or 118957 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 45193780 is about 6722.6319250722. The cubic root of 45193780 is about 356.1991584366.

The spelling of 45193780 in words is "forty-five million, one hundred ninety-three thousand, seven hundred eighty".