1622631412 has 12 divisors (see below), whose sum is σ = 2852115840. Its totient is φ = 807741176.

The previous prime is 1622631391. The next prime is 1622631427. The reversal of 1622631412 is 2141362261.

It is a super-2 number, since 2×1622631412² = 5265865398418227488, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 892612 + ... + 894427.

It is an arithmetic number, because the mean of its divisors is an integer number (237676320).

Almost surely, 2^1622631412 is an apocalyptic number.

It is an amenable number.

1622631412 is a deficient number, since it is larger than the sum of its proper divisors (1229484428).

1622631412 is a wasteful number, since it uses less digits than its factorization.

1622631412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787270 (or 1787268 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1622631412 is about 40281.8993097396. The cubic root of 1622631412 is about 1175.0958514231.

Adding to 1622631412 its reverse (2141362261), we get a palindrome (3763993673).

The spelling of 1622631412 in words is "one billion, six hundred twenty-two million, six hundred thirty-one thousand, four hundred twelve".