1623132990 has 48 divisors (see below), whose sum is σ = 4248504000. Its totient is φ = 429926976.

The previous prime is 1623132859. The next prime is 1623132991. The reversal of 1623132990 is 992313261.

It is a happy number.

1623132990 is a `hidden beast` number, since 1 + 623 + 1 + 3 + 29 + 9 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623132991) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 47110 + ... + 73929.

It is an arithmetic number, because the mean of its divisors is an integer number (88510500).

Almost surely, 2^1623132990 is an apocalyptic number.

1623132990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1623132990 is an abundant number, since it is smaller than the sum of its proper divisors (2625371010).

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

1623132990 is a wasteful number, since it uses less digits than its factorization.

1623132990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121201 (or 121198 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1623132990 is about 40288.1246771304. The cubic root of 1623132990 is about 1175.2169184550.

The spelling of 1623132990 in words is "one billion, six hundred twenty-three million, one hundred thirty-two thousand, nine hundred ninety".