789930540 has 72 divisors (see below), whose sum is σ = 2738430240. Its totient is φ = 180555264.

The previous prime is 789930539. The next prime is 789930569. The reversal of 789930540 is 45039987.

789930540 is a `hidden beast` number, since 78 + 9 + 9 + 30 + 540 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312205 + ... + 314724.

Almost surely, 2^789930540 is an apocalyptic number.

789930540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

789930540 is an abundant number, since it is smaller than the sum of its proper divisors (1948499700).

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

789930540 is a wasteful number, since it uses less digits than its factorization.

789930540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626951 (or 626946 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 789930540 is about 28105.7029800003. The cubic root of 789930540 is about 924.4064524296.

The spelling of 789930540 in words is "seven hundred eighty-nine million, nine hundred thirty thousand, five hundred forty".