18542270 has 8 divisors (see below), whose sum is σ = 33376104. Its totient is φ = 7416904.

The previous prime is 18542269. The next prime is 18542273. The reversal of 18542270 is 7224581.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18542273) 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, 927104 + ... + 927123.

It is an arithmetic number, because the mean of its divisors is an integer number (4172013).

Almost surely, 2^18542270 is an apocalyptic number.

18542270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18542270 is a deficient number, since it is larger than the sum of its proper divisors (14833834).

18542270 is a wasteful number, since it uses less digits than its factorization.

18542270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854234.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 18542270 is about 4306.0736175779. The cubic root of 18542270 is about 264.6799030519.

The spelling of 18542270 in words is "eighteen million, five hundred forty-two thousand, two hundred seventy".