18952645 has 8 divisors (see below), whose sum is σ = 22819104. Its totient is φ = 15111504.

The previous prime is 18952613. The next prime is 18952649. The reversal of 18952645 is 54625981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18952645 - 2⁵ = 18952613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18952598 and 18952607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18952649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639 + ... + 7708.

It is an arithmetic number, because the mean of its divisors is an integer number (2852388).

Almost surely, 2^18952645 is an apocalyptic number.

It is an amenable number.

18952645 is a deficient number, since it is larger than the sum of its proper divisors (3866459).

18952645 is a wasteful number, since it uses less digits than its factorization.

18952645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12659.

The product of its digits is 86400, while the sum is 40.

The square root of 18952645 is about 4353.4635636468. The cubic root of 18952645 is about 266.6182924406.

It can be divided in two parts, 18952 and 645, that multiplied together give a triangular number (12224040 = T₄₉₄₄).

The spelling of 18952645 in words is "eighteen million, nine hundred fifty-two thousand, six hundred forty-five".