1632236645 has 24 divisors (see below), whose sum is σ = 2189394432. Its totient is φ = 1166443200.

The previous prime is 1632236621. The next prime is 1632236663. The reversal of 1632236645 is 5466322361.

It is a happy number.

It is not a de Polignac number, because 1632236645 - 2²⁴ = 1615459429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1632236599 and 1632236608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4961 + ... + 57350.

It is an arithmetic number, because the mean of its divisors is an integer number (91224768).

Almost surely, 2^1632236645 is an apocalyptic number.

It is an amenable number.

1632236645 is a deficient number, since it is larger than the sum of its proper divisors (557157787).

1632236645 is a wasteful number, since it uses less digits than its factorization.

1632236645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62373 (or 62360 counting only the distinct ones).

The product of its digits is 155520, while the sum is 38.

The square root of 1632236645 is about 40400.9485655968. The cubic root of 1632236645 is about 1177.4099672268.

The spelling of 1632236645 in words is "one billion, six hundred thirty-two million, two hundred thirty-six thousand, six hundred forty-five".