45265878 has 80 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 12803184.

The previous prime is 45265873. The next prime is 45265901. The reversal of 45265878 is 87856254.

45265878 is a `hidden beast` number, since 4 + 526 + 58 + 78 = 666.

It is a super-2 number, since 2×45265878² = 4097999422221768, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45265873) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 202875 + ... + 203097.

It is an arithmetic number, because the mean of its divisors is an integer number (1463616).

Almost surely, 2^45265878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45265878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58544640).

45265878 is an abundant number, since it is smaller than the sum of its proper divisors (71823402).

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

45265878 is a wasteful number, since it uses less digits than its factorization.

45265878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 414 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 45265878 is about 6727.9921224686. The cubic root of 45265878 is about 356.3884735925.

It can be divided in two parts, 4526 and 5878, that added together give a square (10404 = 102²).

The spelling of 45265878 in words is "forty-five million, two hundred sixty-five thousand, eight hundred seventy-eight".