45186393240 has 64 divisors (see below), whose sum is σ = 150621314400. Its totient is φ = 12049704576.

The previous prime is 45186393209. The next prime is 45186393247. The reversal of 45186393240 is 4239368154.

45186393240 is a `hidden beast` number, since 4 + 5 + 1 + 8 + 639 + 3 + 2 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45186393247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20918547 + ... + 20920706.

Almost surely, 2^45186393240 is an apocalyptic number.

45186393240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45186393240 is an abundant number, since it is smaller than the sum of its proper divisors (105434921160).

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

45186393240 is a wasteful number, since it uses less digits than its factorization.

45186393240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41839273 (or 41839263 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 45186393240 in words is "forty-five billion, one hundred eighty-six million, three hundred ninety-three thousand, two hundred forty".