40442700 has 72 divisors (see below), whose sum is σ = 118148688. Its totient is φ = 10680320.

The previous prime is 40442669. The next prime is 40442737. The reversal of 40442700 is 724404.

It is a super-2 number, since 2×40442700² = 3271223966580000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33304 + ... + 34496.

It is an arithmetic number, because the mean of its divisors is an integer number (1640954).

Almost surely, 2^40442700 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 40442700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59074344).

40442700 is an abundant number, since it is smaller than the sum of its proper divisors (77705988).

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

40442700 is a wasteful number, since it uses less digits than its factorization.

40442700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 40442700 is about 6359.4575240346. The cubic root of 40442700 is about 343.2522404598.

The spelling of 40442700 in words is "forty million, four hundred forty-two thousand, seven hundred".