2542797090 has 64 divisors (see below), whose sum is σ = 6806764800. Its totient is φ = 675482112.

The previous prime is 2542797079. The next prime is 2542797097. The reversal of 2542797090 is 907972452.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2542797097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53106 + ... + 88914.

It is an arithmetic number, because the mean of its divisors is an integer number (106355700).

Almost surely, 2^2542797090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2542797090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3403382400).

2542797090 is an abundant number, since it is smaller than the sum of its proper divisors (4263967710).

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

2542797090 is a wasteful number, since it uses less digits than its factorization.

2542797090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36088 (or 36082 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 2542797090 is about 50426.1548206880. The cubic root of 2542797090 is about 1364.9096426120.

The spelling of 2542797090 in words is "two billion, five hundred forty-two million, seven hundred ninety-seven thousand, ninety".