387117432 has 48 divisors (see below), whose sum is σ = 1129095240. Its totient is φ = 119112768.

The previous prime is 387117403. The next prime is 387117481. The reversal of 387117432 is 234711783.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205858 + ... + 207729.

Almost surely, 2^387117432 is an apocalyptic number.

It is an amenable number.

387117432 is an abundant number, since it is smaller than the sum of its proper divisors (741977808).

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

387117432 is a wasteful number, since it uses less digits than its factorization.

387117432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413612 (or 413605 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 387117432 is about 19675.3000485380. The cubic root of 387117432 is about 728.8098653436.

The spelling of 387117432 in words is "three hundred eighty-seven million, one hundred seventeen thousand, four hundred thirty-two".