2631870040 has 32 divisors (see below), whose sum is σ = 6059425680. Its totient is φ = 1028264832.

The previous prime is 2631869969. The next prime is 2631870077. The reversal of 2631870040 is 400781362.

It is a junction number, because it is equal to n+sod(n) for n = 2631869984 and 2631870011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763359 + ... + 766798.

Almost surely, 2^2631870040 is an apocalyptic number.

2631870040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2631870040 is an abundant number, since it is smaller than the sum of its proper divisors (3427555640).

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

2631870040 is a wasteful number, since it uses less digits than its factorization.

2631870040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530211 (or 1530207 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2631870040 is about 51301.7547458174. The cubic root of 2631870040 is about 1380.6644633216.

The spelling of 2631870040 in words is "two billion, six hundred thirty-one million, eight hundred seventy thousand, forty".