2979534240 has 384 divisors, whose sum is σ = 11430720000. Its totient is φ = 721502208.

The previous prime is 2979534227. The next prime is 2979534277. The reversal of 2979534240 is 424359792.

2979534240 is a `hidden beast` number, since 2 + 9 + 79 + 534 + 2 + 40 = 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 63 ways as a sum of consecutive naturals, for example, 2129061 + ... + 2130459.

It is an arithmetic number, because the mean of its divisors is an integer number (29767500).

Almost surely, 2^2979534240 is an apocalyptic number.

2979534240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2979534240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5715360000).

2979534240 is an abundant number, since it is smaller than the sum of its proper divisors (8451185760).

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

2979534240 is a wasteful number, since it uses less digits than its factorization.

2979534240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 2979534240 is about 54585.1100575972. The cubic root of 2979534240 is about 1438.9624470433.

The spelling of 2979534240 in words is "two billion, nine hundred seventy-nine million, five hundred thirty-four thousand, two hundred forty".