40371642 has 32 divisors (see below), whose sum is σ = 90072000. Its totient is φ = 13403664.

The previous prime is 40371631. The next prime is 40371671. The reversal of 40371642 is 24617304.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13609 + ... + 16307.

It is an arithmetic number, because the mean of its divisors is an integer number (2814750).

Almost surely, 2^40371642 is an apocalyptic number.

40371642 is an abundant number, since it is smaller than the sum of its proper divisors (49700358).

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

40371642 is a wasteful number, since it uses less digits than its factorization.

40371642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40371642 is about 6353.8682705892. The cubic root of 40371642 is about 343.0510907131.

Adding to 40371642 its reverse (24617304), we get a palindrome (64988946).

The spelling of 40371642 in words is "forty million, three hundred seventy-one thousand, six hundred forty-two".