45070920 has 48 divisors (see below), whose sum is σ = 146481660. Its totient is φ = 12018816.

The previous prime is 45070897. The next prime is 45070937. The reversal of 45070920 is 2907054.

It can be written as a sum of positive squares in 2 ways, for example, as 42693156 + 2377764 = 6534^2 + 1542^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62239 + ... + 62958.

Almost surely, 2^45070920 is an apocalyptic number.

45070920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45070920 is an abundant number, since it is smaller than the sum of its proper divisors (101410740).

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

45070920 is a wasteful number, since it uses less digits than its factorization.

45070920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125214 (or 125207 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 45070920 is about 6713.4879161282. The cubic root of 45070920 is about 355.8760878351.

Adding to 45070920 its reverse (2907054), we get a palindrome (47977974).

The spelling of 45070920 in words is "forty-five million, seventy thousand, nine hundred twenty".