102042042 has 16 divisors (see below), whose sum is σ = 204900192. Its totient is φ = 33878000.

The previous prime is 102042037. The next prime is 102042067. The reversal of 102042042 is 240240201.

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, 32373 + ... + 35384.

It is an arithmetic number, because the mean of its divisors is an integer number (12806262).

Almost surely, 2^102042042 is an apocalyptic number.

102042042 is an abundant number, since it is smaller than the sum of its proper divisors (102858150).

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

102042042 is a wasteful number, since it uses less digits than its factorization.

102042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68013.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 102042042 is about 10101.5861130815. The cubic root of 102042042 is about 467.2970581499.

Adding to 102042042 its reverse (240240201), we get a palindrome (342282243).

It can be divided in two parts, 10204 and 2042, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 102042042 in words is "one hundred two million, forty-two thousand, forty-two".