387122638 has 48 divisors (see below), whose sum is σ = 698197104. Its totient is φ = 160392960.

The previous prime is 387122633. The next prime is 387122639. The reversal of 387122638 is 836221783.

It is a self number, because there is not a number n which added to its sum of digits gives 387122638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387122633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 873645 + ... + 874087.

It is an arithmetic number, because the mean of its divisors is an integer number (14545773).

Almost surely, 2^387122638 is an apocalyptic number.

387122638 is a deficient number, since it is larger than the sum of its proper divisors (311074466).

387122638 is a wasteful number, since it uses less digits than its factorization.

387122638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 730 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 387122638 is about 19675.4323459486. The cubic root of 387122638 is about 728.8131323688.

The spelling of 387122638 in words is "three hundred eighty-seven million, one hundred twenty-two thousand, six hundred thirty-eight".