2631622840 has 64 divisors (see below), whose sum is σ = 7382223360. Its totient is φ = 820245120.

The previous prime is 2631622837. The next prime is 2631622849. The reversal of 2631622840 is 482261362.

2631622840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2631622796 and 2631622805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631622849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424132 + ... + 430291.

It is an arithmetic number, because the mean of its divisors is an integer number (115347240).

Almost surely, 2^2631622840 is an apocalyptic number.

2631622840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2631622840 is an abundant number, since it is smaller than the sum of its proper divisors (4750600520).

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

2631622840 is a wasteful number, since it uses less digits than its factorization.

2631622840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854452 (or 854448 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2631622840 is about 51299.3454149271. The cubic root of 2631622840 is about 1380.6212353840.

The spelling of 2631622840 in words is "two billion, six hundred thirty-one million, six hundred twenty-two thousand, eight hundred forty".