3722638 has 8 divisors (see below), whose sum is σ = 5654880. Its totient is φ = 1837680.

The previous prime is 3722629. The next prime is 3722683. The reversal of 3722638 is 8362273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11623 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (706860).

Almost surely, 2^3722638 is an apocalyptic number.

3722638 is a deficient number, since it is larger than the sum of its proper divisors (1932242).

3722638 is a wasteful number, since it uses less digits than its factorization.

3722638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23642.

The product of its digits is 12096, while the sum is 31.

The square root of 3722638 is about 1929.4139006444. The cubic root of 3722638 is about 154.9828354215.

The spelling of 3722638 in words is "three million, seven hundred twenty-two thousand, six hundred thirty-eight".