389358240 has 48 divisors (see below), whose sum is σ = 1226479968. Its totient is φ = 103828736.

The previous prime is 389358227. The next prime is 389358253. The reversal of 389358240 is 42853983.

It is an interprime number because it is at equal distance from previous prime (389358227) and next prime (389358253).

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 389358192 and 389358201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405102 + ... + 406061.

It is an arithmetic number, because the mean of its divisors is an integer number (25551666).

Almost surely, 2^389358240 is an apocalyptic number.

389358240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

389358240 is an abundant number, since it is smaller than the sum of its proper divisors (837121728).

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

389358240 is a wasteful number, since it uses less digits than its factorization.

389358240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811181 (or 811173 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 389358240 is about 19732.1625778828. The cubic root of 389358240 is about 730.2133860460.

The spelling of 389358240 in words is "three hundred eighty-nine million, three hundred fifty-eight thousand, two hundred forty".