18516070 has 16 divisors (see below), whose sum is σ = 35083440. Its totient is φ = 7016544.

The previous prime is 18516059. The next prime is 18516097. The reversal of 18516070 is 7061581.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48537 + ... + 48916.

It is an arithmetic number, because the mean of its divisors is an integer number (2192715).

Almost surely, 2^18516070 is an apocalyptic number.

18516070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18516070 is a deficient number, since it is larger than the sum of its proper divisors (16567370).

18516070 is a wasteful number, since it uses less digits than its factorization.

18516070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97479.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 18516070 is about 4303.0303275715. The cubic root of 18516070 is about 264.5551811381. Note that the first 3 decimals are identical.

It can be divided in two parts, 1851 and 6070, that added together give a square (7921 = 89²).

The spelling of 18516070 in words is "eighteen million, five hundred sixteen thousand, seventy".