40442934 has 48 divisors (see below), whose sum is σ = 94818816. Its totient is φ = 11466000.

The previous prime is 40442929. The next prime is 40442951. The reversal of 40442934 is 43924404.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 43939 + ... + 44849.

It is an arithmetic number, because the mean of its divisors is an integer number (1975392).

Almost surely, 2^40442934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40442934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47409408).

40442934 is an abundant number, since it is smaller than the sum of its proper divisors (54375882).

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

40442934 is a wasteful number, since it uses less digits than its factorization.

40442934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 40442934 is about 6359.4759218036. The cubic root of 40442934 is about 343.2529024736.

The spelling of 40442934 in words is "forty million, four hundred forty-two thousand, nine hundred thirty-four".