18140010 has 32 divisors (see below), whose sum is σ = 49756032. Its totient is φ = 4146240.

The previous prime is 18140009. The next prime is 18140011. The reversal of 18140010 is 1004181.

It is an interprime number because it is at equal distance from previous prime (18140009) and next prime (18140011).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (18140011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42981 + ... + 43400.

It is an arithmetic number, because the mean of its divisors is an integer number (1554876).

Almost surely, 2^18140010 is an apocalyptic number.

18140010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18140010 is an abundant number, since it is smaller than the sum of its proper divisors (31616022).

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

18140010 is a wasteful number, since it uses less digits than its factorization.

18140010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86398.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 18140010 is about 4259.1090617640. The cubic root of 18140010 is about 262.7518852072.

Adding to 18140010 its reverse (1004181), we get a palindrome (19144191).

The spelling of 18140010 in words is "eighteen million, one hundred forty thousand, ten".