2973855240 has 96 divisors (see below), whose sum is σ = 9730071000. Its totient is φ = 787691520.

The previous prime is 2973855179. The next prime is 2973855253. The reversal of 2973855240 is 425583792.

2973855240 is a `hidden beast` number, since 2 + 97 + 3 + 8 + 552 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1713463236 + 1260392004 = 41394^2 + 35502^2 .

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, 25920 + ... + 81360.

Almost surely, 2^2973855240 is an apocalyptic number.

2973855240 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 2973855240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4865035500).

2973855240 is an abundant number, since it is smaller than the sum of its proper divisors (6756215760).

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

2973855240 is a wasteful number, since it uses less digits than its factorization.

2973855240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55607 (or 55600 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 2973855240 is about 54533.0655657648. The cubic root of 2973855240 is about 1438.0476435372.

The spelling of 2973855240 in words is "two billion, nine hundred seventy-three million, eight hundred fifty-five thousand, two hundred forty".