2491367620 has 48 divisors (see below), whose sum is σ = 6140897280. Its totient is φ = 831095424.

The previous prime is 2491367617. The next prime is 2491367653. The reversal of 2491367620 is 267631942.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235300 + ... + 245659.

It is an arithmetic number, because the mean of its divisors is an integer number (127935360).

Almost surely, 2^2491367620 is an apocalyptic number.

2491367620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2491367620 is an abundant number, since it is smaller than the sum of its proper divisors (3649529660).

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

2491367620 is a wasteful number, since it uses less digits than its factorization.

2491367620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481012 (or 481010 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 2491367620 is about 49913.6015530837. The cubic root of 2491367620 is about 1355.6448812358.

The spelling of 2491367620 in words is "two billion, four hundred ninety-one million, three hundred sixty-seven thousand, six hundred twenty".