2631498240 has 320 divisors, whose sum is σ = 9930792960. Its totient is φ = 581713920.

The previous prime is 2631498197. The next prime is 2631498257. The reversal of 2631498240 is 428941362.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1665771 + ... + 1667349.

It is an arithmetic number, because the mean of its divisors is an integer number (31033728).

Almost surely, 2^2631498240 is an apocalyptic number.

2631498240 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 2631498240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4965396480).

2631498240 is an abundant number, since it is smaller than the sum of its proper divisors (7299294720).

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

2631498240 is a wasteful number, since it uses less digits than its factorization.

2631498240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 2631498240 is about 51298.1309601042. The cubic root of 2631498240 is about 1380.5994455188.

The spelling of 2631498240 in words is "two billion, six hundred thirty-one million, four hundred ninety-eight thousand, two hundred forty".