1623132690 has 32 divisors (see below), whose sum is σ = 3906705600. Its totient is φ = 431592384.

The previous prime is 1623132671. The next prime is 1623132691. The reversal of 1623132690 is 962313261.

It is a super-2 number, since 2×1623132690² = 5269119458693272200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1623132691) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67044 + ... + 87983.

It is an arithmetic number, because the mean of its divisors is an integer number (122084550).

Almost surely, 2^1623132690 is an apocalyptic number.

1623132690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1623132690 is an abundant number, since it is smaller than the sum of its proper divisors (2283572910).

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

1623132690 is a wasteful number, since it uses less digits than its factorization.

1623132690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155386.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1623132690 is about 40288.1209539487. The cubic root of 1623132690 is about 1175.2168460508.

The spelling of 1623132690 in words is "one billion, six hundred twenty-three million, one hundred thirty-two thousand, six hundred ninety".