39640022 has 16 divisors (see below), whose sum is σ = 63824112. Its totient is φ = 18397440.

The previous prime is 39640001. The next prime is 39640043. The reversal of 39640022 is 22004693.

It is an interprime number because it is at equal distance from previous prime (39640001) and next prime (39640043).

It is a junction number, because it is equal to n+sod(n) for n = 39639973 and 39640000.

It is a congruent number.

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, 5504 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (3989007).

Almost surely, 2^39640022 is an apocalyptic number.

39640022 is a deficient number, since it is larger than the sum of its proper divisors (24184090).

39640022 is a wasteful number, since it uses less digits than its factorization.

39640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16063.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 39640022 is about 6296.0322426112. The cubic root of 39640022 is about 340.9661734060.

The spelling of 39640022 in words is "thirty-nine million, six hundred forty thousand, twenty-two".