789552540 has 72 divisors (see below), whose sum is σ = 2737119840. Its totient is φ = 180468864.

The previous prime is 789552527. The next prime is 789552571. The reversal of 789552540 is 45255987.

789552540 is a `hidden beast` number, since 7 + 89 + 5 + 525 + 40 = 666.

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

It is a congruent number.

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, 312055 + ... + 314574.

Almost surely, 2^789552540 is an apocalyptic number.

789552540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

789552540 is an abundant number, since it is smaller than the sum of its proper divisors (1947567300).

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

789552540 is a wasteful number, since it uses less digits than its factorization.

789552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626651 (or 626646 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 789552540 is about 28098.9775614701. The cubic root of 789552540 is about 924.2589789610.

The spelling of 789552540 in words is "seven hundred eighty-nine million, five hundred fifty-two thousand, five hundred forty".