18972354 has 8 divisors (see below), whose sum is σ = 37944720. Its totient is φ = 6324116.

The previous prime is 18972353. The next prime is 18972367. The reversal of 18972354 is 45327981.

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

18972354 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18972353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1581024 + ... + 1581035.

It is an arithmetic number, because the mean of its divisors is an integer number (4743090).

Almost surely, 2^18972354 is an apocalyptic number.

18972354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18972354 is a wasteful number, since it uses less digits than its factorization.

18972354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162064.

The product of its digits is 60480, while the sum is 39.

The square root of 18972354 is about 4355.7265754407. The cubic root of 18972354 is about 266.7106798880.

The spelling of 18972354 in words is "eighteen million, nine hundred seventy-two thousand, three hundred fifty-four".