18949095 has 24 divisors (see below), whose sum is σ = 35831952. Its totient is φ = 9187200.

The previous prime is 18949087. The next prime is 18949109. The reversal of 18949095 is 59094981.

It is not a de Polignac number, because 18949095 - 2³ = 18949087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 18949095.

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, 18646 + ... + 19635.

It is an arithmetic number, because the mean of its divisors is an integer number (1492998).

Almost surely, 2^18949095 is an apocalyptic number.

18949095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18949095 is a deficient number, since it is larger than the sum of its proper divisors (16882857).

18949095 is a wasteful number, since it uses less digits than its factorization.

18949095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38303 (or 38300 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 18949095 is about 4353.0558232120. The cubic root of 18949095 is about 266.6016447371.

It can be divided in two parts, 189 and 49095, that added together give a square (49284 = 222²).

The spelling of 18949095 in words is "eighteen million, nine hundred forty-nine thousand, ninety-five".