389629550 has 24 divisors (see below), whose sum is σ = 725939400. Its totient is φ = 155587680.

The previous prime is 389629549. The next prime is 389629567. The reversal of 389629550 is 55926983.

It is a super-2 number, since 2×389629550² = 303622372466405000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 389629495 and 389629504.

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, 24656 + ... + 37244.

It is an arithmetic number, because the mean of its divisors is an integer number (30247475).

Almost surely, 2^389629550 is an apocalyptic number.

389629550 is a deficient number, since it is larger than the sum of its proper divisors (336309850).

389629550 is a wasteful number, since it uses less digits than its factorization.

389629550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13220 (or 13215 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 389629550 is about 19739.0361973426. The cubic root of 389629550 is about 730.3829541327.

The spelling of 389629550 in words is "three hundred eighty-nine million, six hundred twenty-nine thousand, five hundred fifty".