45520140 has 48 divisors (see below), whose sum is σ = 131856480. Its totient is φ = 11719680.

The previous prime is 45520117. The next prime is 45520147. The reversal of 45520140 is 4102554.

45520140 = T₃₁₇₆ + T₃₁₇₇ + ... + T₃₁₈₄.

It is not an unprimeable number, because it can be changed into a prime (45520147) 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, 11341 + ... + 14820.

It is an arithmetic number, because the mean of its divisors is an integer number (2747010).

Almost surely, 2^45520140 is an apocalyptic number.

It is an amenable number.

45520140 is an abundant number, since it is smaller than the sum of its proper divisors (86336340).

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

45520140 is a wasteful number, since it uses less digits than its factorization.

45520140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26202 (or 26200 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45520140 is about 6746.8614925756. The cubic root of 45520140 is about 357.0545154451.

Adding to 45520140 its reverse (4102554), we get a palindrome (49622694).

The spelling of 45520140 in words is "forty-five million, five hundred twenty thousand, one hundred forty".