40432642 has 16 divisors (see below), whose sum is σ = 63578592. Its totient is φ = 19262880.

The previous prime is 40432633. The next prime is 40432657. The reversal of 40432642 is 24623404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2208 + ... + 9259.

It is an arithmetic number, because the mean of its divisors is an integer number (3973662).

Almost surely, 2^40432642 is an apocalyptic number.

40432642 is a deficient number, since it is larger than the sum of its proper divisors (23145950).

40432642 is a wasteful number, since it uses less digits than its factorization.

40432642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11553.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 40432642 is about 6358.6666841406. Note that the first 4 decimals coincide. The cubic root of 40432642 is about 343.2237827713.

The spelling of 40432642 in words is "forty million, four hundred thirty-two thousand, six hundred forty-two".