18970854 has 32 divisors (see below), whose sum is σ = 45646080. Its totient is φ = 5134752.

The previous prime is 18970841. The next prime is 18970867. The reversal of 18970854 is 45807981.

It is an interprime number because it is at equal distance from previous prime (18970841) and next prime (18970867).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11089 + ... + 12684.

It is an arithmetic number, because the mean of its divisors is an integer number (1426440).

Almost surely, 2^18970854 is an apocalyptic number.

18970854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18970854 is an abundant number, since it is smaller than the sum of its proper divisors (26675226).

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

18970854 is a wasteful number, since it uses less digits than its factorization.

18970854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23804.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 18970854 is about 4355.5543849205. The cubic root of 18970854 is about 266.7036507732.

The spelling of 18970854 in words is "eighteen million, nine hundred seventy thousand, eight hundred fifty-four".