387636222 has 16 divisors (see below), whose sum is σ = 794182032. Its totient is φ = 126060480.

The previous prime is 387636211. The next prime is 387636229. The reversal of 387636222 is 222636783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387636229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787633 + ... + 788124.

It is an arithmetic number, because the mean of its divisors is an integer number (49636377).

Almost surely, 2^387636222 is an apocalyptic number.

387636222 is an abundant number, since it is smaller than the sum of its proper divisors (406545810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387636222 is a wasteful number, since it uses less digits than its factorization.

387636222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575803.

The product of its digits is 145152, while the sum is 39.

The square root of 387636222 is about 19688.4794232566. The cubic root of 387636222 is about 729.1352881249.

The spelling of 387636222 in words is "three hundred eighty-seven million, six hundred thirty-six thousand, two hundred twenty-two".