642341102 has 32 divisors (see below), whose sum is σ = 1100554560. Its totient is φ = 278910720.

The previous prime is 642341099. The next prime is 642341123. The reversal of 642341102 is 201143246.

642341102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27674 + ... + 45282.

It is an arithmetic number, because the mean of its divisors is an integer number (34392330).

Almost surely, 2^642341102 is an apocalyptic number.

642341102 is a deficient number, since it is larger than the sum of its proper divisors (458213458).

642341102 is a wasteful number, since it uses less digits than its factorization.

642341102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17708.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 642341102 is about 25344.4491358562. The cubic root of 642341102 is about 862.8233789008.

Adding to 642341102 its reverse (201143246), we get a palindrome (843484348).

The spelling of 642341102 in words is "six hundred forty-two million, three hundred forty-one thousand, one hundred two".