1223632490 has 16 divisors (see below), whose sum is σ = 2318461920. Its totient is φ = 463692240.

The previous prime is 1223632469. The next prime is 1223632517. The reversal of 1223632490 is 942363221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219896 + ... + 3220275.

It is an arithmetic number, because the mean of its divisors is an integer number (144903870).

Almost surely, 2^1223632490 is an apocalyptic number.

1223632490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223632490 is a deficient number, since it is larger than the sum of its proper divisors (1094829430).

1223632490 is a wasteful number, since it uses less digits than its factorization.

1223632490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440197.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1223632490 is about 34980.4586876730. The cubic root of 1223632490 is about 1069.5891775996.

The spelling of 1223632490 in words is "one billion, two hundred twenty-three million, six hundred thirty-two thousand, four hundred ninety".