18913350 has 48 divisors (see below), whose sum is σ = 49670928. Its totient is φ = 4746240.

The previous prime is 18913289. The next prime is 18913369. The reversal of 18913350 is 5331981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1159 + ... + 6258.

It is an arithmetic number, because the mean of its divisors is an integer number (1034811).

Almost surely, 2^18913350 is an apocalyptic number.

18913350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18913350 is an abundant number, since it is smaller than the sum of its proper divisors (30757578).

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

18913350 is a wasteful number, since it uses less digits than its factorization.

18913350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7449 (or 7444 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 18913350 is about 4348.9481486907. The cubic root of 18913350 is about 266.4339027906.

The spelling of 18913350 in words is "eighteen million, nine hundred thirteen thousand, three hundred fifty".