40673642 has 16 divisors (see below), whose sum is σ = 64356000. Its totient is φ = 19226160.

The previous prime is 40673621. The next prime is 40673663. The reversal of 40673642 is 24637604.

It is an interprime number because it is at equal distance from previous prime (40673621) and next prime (40673663).

It is a junction number, because it is equal to n+sod(n) for n = 40673599 and 40673608.

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, 25484 + ... + 27032.

It is an arithmetic number, because the mean of its divisors is an integer number (4022250).

Almost surely, 2^40673642 is an apocalyptic number.

40673642 is a deficient number, since it is larger than the sum of its proper divisors (23682358).

40673642 is a wasteful number, since it uses less digits than its factorization.

40673642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 40673642 is about 6377.5890428907. The cubic root of 40673642 is about 343.9043643017.

The spelling of 40673642 in words is "forty million, six hundred seventy-three thousand, six hundred forty-two".