389153970 has 160 divisors (see below), whose sum is σ = 1129075200. Its totient is φ = 95814144.

The previous prime is 389153969. The next prime is 389154011. The reversal of 389153970 is 79351983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 812191 + ... + 812669.

It is an arithmetic number, because the mean of its divisors is an integer number (7056720).

Almost surely, 2^389153970 is an apocalyptic number.

389153970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 389153970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564537600).

389153970 is an abundant number, since it is smaller than the sum of its proper divisors (739921230).

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

389153970 is a wasteful number, since it uses less digits than its factorization.

389153970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 389153970 is about 19726.9858315963. The cubic root of 389153970 is about 730.0856658083.

The spelling of 389153970 in words is "three hundred eighty-nine million, one hundred fifty-three thousand, nine hundred seventy".