389857046 has 4 divisors (see below), whose sum is σ = 584785572. Its totient is φ = 194928522.

The previous prime is 389857037. The next prime is 389857079. The reversal of 389857046 is 640758983.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×389857046² = 303977032631692232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 389856985 and 389857003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97464260 + ... + 97464263.

It is an arithmetic number, because the mean of its divisors is an integer number (146196393).

Almost surely, 2^389857046 is an apocalyptic number.

389857046 is a deficient number, since it is larger than the sum of its proper divisors (194928526).

389857046 is a wasteful number, since it uses less digits than its factorization.

389857046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194928525.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 389857046 is about 19744.7979478140. The cubic root of 389857046 is about 730.5250779116.

The spelling of 389857046 in words is "three hundred eighty-nine million, eight hundred fifty-seven thousand, forty-six".