18772054 has 8 divisors (see below), whose sum is σ = 32180688. Its totient is φ = 8045160.

The previous prime is 18772049. The next prime is 18772069. The reversal of 18772054 is 45027781.

It is a happy number.

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

It is a super-2 number, since 2×18772054² = 704780022757832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670417 + ... + 670444.

It is an arithmetic number, because the mean of its divisors is an integer number (4022586).

Almost surely, 2^18772054 is an apocalyptic number.

18772054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18772054 is a deficient number, since it is larger than the sum of its proper divisors (13408634).

18772054 is a wasteful number, since it uses less digits than its factorization.

18772054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340870.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 18772054 is about 4332.6728471003. The cubic root of 18772054 is about 265.7687609159.

The spelling of 18772054 in words is "eighteen million, seven hundred seventy-two thousand, fifty-four".