18942010 has 16 divisors (see below), whose sum is σ = 34165800. Its totient is φ = 7561216.

The previous prime is 18941999. The next prime is 18942013. The reversal of 18942010 is 1024981.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11029041 + 7912969 = 3321^2 + 2813^2 .

It is not an unprimeable number, because it can be changed into a prime (18942013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4026 + ... + 7354.

Almost surely, 2^18942010 is an apocalyptic number.

18942010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18942010 is a deficient number, since it is larger than the sum of its proper divisors (15223790).

18942010 is a wasteful number, since it uses less digits than its factorization.

18942010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18942010 is about 4352.2419509949. The cubic root of 18942010 is about 266.5684134559.

Adding to 18942010 its reverse (1024981), we get a palindrome (19966991).

The spelling of 18942010 in words is "eighteen million, nine hundred forty-two thousand, ten".