18950374 has 4 divisors (see below), whose sum is σ = 28425564. Its totient is φ = 9475186.

The previous prime is 18950363. The next prime is 18950377. The reversal of 18950374 is 47305981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47305981 = 113 ⋅418637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4737592 + ... + 4737595.

It is an arithmetic number, because the mean of its divisors is an integer number (7106391).

Almost surely, 2^18950374 is an apocalyptic number.

18950374 is a deficient number, since it is larger than the sum of its proper divisors (9475190).

18950374 is an equidigital number, since it uses as much as digits as its factorization.

18950374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475189.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 18950374 is about 4353.2027290261. The cubic root of 18950374 is about 266.6076428394.

The spelling of 18950374 in words is "eighteen million, nine hundred fifty thousand, three hundred seventy-four".