40667632 has 20 divisors (see below), whose sum is σ = 78901200. Its totient is φ = 20306048.

The previous prime is 40667617. The next prime is 40667633. The reversal of 40667632 is 23676604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40667633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15573 + ... + 17995.

It is an arithmetic number, because the mean of its divisors is an integer number (3945060).

Almost surely, 2^40667632 is an apocalyptic number.

It is an amenable number.

40667632 is a deficient number, since it is larger than the sum of its proper divisors (38233568).

40667632 is a wasteful number, since it uses less digits than its factorization.

40667632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480 (or 3474 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 40667632 is about 6377.1178442930. The cubic root of 40667632 is about 343.8874248544.

The spelling of 40667632 in words is "forty million, six hundred sixty-seven thousand, six hundred thirty-two".