18876470 has 16 divisors (see below), whose sum is σ = 34130160. Its totient is φ = 7516704.

The previous prime is 18876467. The next prime is 18876479. The reversal of 18876470 is 7467881.

It is a super-2 number, since 2×18876470² = 712642239321800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18876479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832 + ... + 6411.

It is an arithmetic number, because the mean of its divisors is an integer number (2133135).

Almost surely, 2^18876470 is an apocalyptic number.

18876470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18876470 is a deficient number, since it is larger than the sum of its proper divisors (15253690).

18876470 is a wasteful number, since it uses less digits than its factorization.

18876470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 18876470 is about 4344.7059739412. The cubic root of 18876470 is about 266.2606129179.

The spelling of 18876470 in words is "eighteen million, eight hundred seventy-six thousand, four hundred seventy".