40442548 has 12 divisors (see below), whose sum is σ = 71051652. Its totient is φ = 20142080.

The previous prime is 40442491. The next prime is 40442561. The reversal of 40442548 is 84524404.

It can be written as a sum of positive squares in 2 ways, for example, as 21883684 + 18558864 = 4678^2 + 4308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18643 + ... + 20698.

It is an arithmetic number, because the mean of its divisors is an integer number (5920971).

Almost surely, 2^40442548 is an apocalyptic number.

It is an amenable number.

40442548 is a deficient number, since it is larger than the sum of its proper divisors (30609104).

40442548 is a wasteful number, since it uses less digits than its factorization.

40442548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39602 (or 39600 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The square root of 40442548 is about 6359.4455733185. The cubic root of 40442548 is about 343.2518104324.

The spelling of 40442548 in words is "forty million, four hundred forty-two thousand, five hundred forty-eight".