389370780436 has 48 divisors (see below), whose sum is σ = 767663866368. Its totient is φ = 171201398400.

The previous prime is 389370780433. The next prime is 389370780443. The reversal of 389370780436 is 634087073983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389370780431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3065406 + ... + 3189898.

It is an arithmetic number, because the mean of its divisors is an integer number (15992997216).

Almost surely, 2^389370780436 is an apocalyptic number.

It is an amenable number.

389370780436 is a deficient number, since it is larger than the sum of its proper divisors (378293085932).

389370780436 is a wasteful number, since it uses less digits than its factorization.

389370780436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126832 (or 126830 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 389370780436 in words is "three hundred eighty-nine billion, three hundred seventy million, seven hundred eighty thousand, four hundred thirty-six".