18892245 has 16 divisors (see below), whose sum is σ = 30284352. Its totient is φ = 10056960.

The previous prime is 18892243. The next prime is 18892259. The reversal of 18892245 is 54229881.

It is not a de Polignac number, because 18892245 - 2¹ = 18892243 is a prime.

It is a super-2 number, since 2×18892245² = 713833842280050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18892243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11389 + ... + 12941.

It is an arithmetic number, because the mean of its divisors is an integer number (1892772).

Almost surely, 2^18892245 is an apocalyptic number.

18892245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18892245 is a deficient number, since it is larger than the sum of its proper divisors (11392107).

18892245 is a wasteful number, since it uses less digits than its factorization.

18892245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its digits is 46080, while the sum is 39.

The square root of 18892245 is about 4346.5210226111. The cubic root of 18892245 is about 266.3347632872.

The spelling of 18892245 in words is "eighteen million, eight hundred ninety-two thousand, two hundred forty-five".