2090291240 has 16 divisors (see below), whose sum is σ = 4703155380. Its totient is φ = 836116480.

The previous prime is 2090291237. The next prime is 2090291243. The reversal of 2090291240 is 421920902.

It is an interprime number because it is at equal distance from previous prime (2090291237) and next prime (2090291243).

It can be written as a sum of positive squares in 2 ways, for example, as 1939345444 + 150945796 = 44038^2 + 12286^2 .

It is not an unprimeable number, because it can be changed into a prime (2090291243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26128601 + ... + 26128680.

Almost surely, 2^2090291240 is an apocalyptic number.

2090291240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2090291240 is an abundant number, since it is smaller than the sum of its proper divisors (2612864140).

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

2090291240 is a wasteful number, since it uses less digits than its factorization.

2090291240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52257292 (or 52257288 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2090291240 is about 45719.7029736633. The cubic root of 2090291240 is about 1278.6026499010.

The spelling of 2090291240 in words is "two billion, ninety million, two hundred ninety-one thousand, two hundred forty".