2400784155 has 72 divisors (see below), whose sum is σ = 5280887664. Its totient is φ = 997718400.

The previous prime is 2400784153. The next prime is 2400784157. The reversal of 2400784155 is 5514870042.

2400784155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2400784153) and next prime (2400784157).

It is not a de Polignac number, because 2400784155 - 2¹ = 2400784153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2400784153) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 25236 + ... + 73745.

It is an arithmetic number, because the mean of its divisors is an integer number (73345662).

Almost surely, 2^2400784155 is an apocalyptic number.

2400784155 is an abundant number, since it is smaller than the sum of its proper divisors (2880103509).

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

2400784155 is a wasteful number, since it uses less digits than its factorization.

2400784155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99017 (or 99007 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2400784155 is about 48997.7974504977. The cubic root of 2400784155 is about 1339.0117007293.

The spelling of 2400784155 in words is "two billion, four hundred million, seven hundred eighty-four thousand, one hundred fifty-five".