3722526638 has 8 divisors (see below), whose sum is σ = 5646529440. Its totient is φ = 1840350160.

The previous prime is 3722526631. The next prime is 3722526659. The reversal of 3722526638 is 8366252273.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722526631) 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, 10456358 + ... + 10456713.

It is an arithmetic number, because the mean of its divisors is an integer number (705816180).

Almost surely, 2^3722526638 is an apocalyptic number.

3722526638 is a deficient number, since it is larger than the sum of its proper divisors (1924002802).

3722526638 is a wasteful number, since it uses less digits than its factorization.

3722526638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20913162.

The product of its digits is 725760, while the sum is 44.

The square root of 3722526638 is about 61012.5121430023. The cubic root of 3722526638 is about 1549.8128997886.

The spelling of 3722526638 in words is "three billion, seven hundred twenty-two million, five hundred twenty-six thousand, six hundred thirty-eight".