45040780 has 48 divisors (see below), whose sum is σ = 98106624. Its totient is φ = 17357760.

The previous prime is 45040771. The next prime is 45040829. The reversal of 45040780 is 8704054.

45040780 = T₃₃₀ + T₃₃₁ + ... + T₆₇₃.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71065 + ... + 71695.

It is an arithmetic number, because the mean of its divisors is an integer number (2043888).

Almost surely, 2^45040780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45040780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49053312).

45040780 is an abundant number, since it is smaller than the sum of its proper divisors (53065844).

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

45040780 is a wasteful number, since it uses less digits than its factorization.

45040780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 45040780 is about 6711.2428059190. The cubic root of 45040780 is about 355.7967425343.

The spelling of 45040780 in words is "forty-five million, forty thousand, seven hundred eighty".