2631213442 has 128 divisors (see below), whose sum is σ = 5152896000. Its totient is φ = 989210880.

The previous prime is 2631213439. The next prime is 2631213451. The reversal of 2631213442 is 2443121362.

It is a happy number.

It is a super-2 number, since 2×2631213442² = 13846568354722974728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2631213442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9297433 + ... + 9297715.

It is an arithmetic number, because the mean of its divisors is an integer number (40257000).

Almost surely, 2^2631213442 is an apocalyptic number.

2631213442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2631213442 is a deficient number, since it is larger than the sum of its proper divisors (2521682558).

2631213442 is a wasteful number, since it uses less digits than its factorization.

2631213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its digits is 6912, while the sum is 28.

The square root of 2631213442 is about 51295.3549748903. The cubic root of 2631213442 is about 1380.5496378794.

The spelling of 2631213442 in words is "two billion, six hundred thirty-one million, two hundred thirteen thousand, four hundred forty-two".