40032342 has 24 divisors (see below), whose sum is σ = 99128016. Its totient is φ = 11437776.

The previous prime is 40032337. The next prime is 40032353. The reversal of 40032342 is 24323004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158733 + ... + 158984.

It is an arithmetic number, because the mean of its divisors is an integer number (4130334).

Almost surely, 2^40032342 is an apocalyptic number.

40032342 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40032342 is an abundant number, since it is smaller than the sum of its proper divisors (59095674).

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

40032342 is a wasteful number, since it uses less digits than its factorization.

40032342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317732 (or 317729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40032342 is about 6327.1116633105. Note that the first 3 decimals coincide. The cubic root of 40032342 is about 342.0873379077.

Adding to 40032342 its reverse (24323004), we get a palindrome (64355346).

The spelling of 40032342 in words is "forty million, thirty-two thousand, three hundred forty-two".