102432235828 has 18 divisors (see below), whose sum is σ = 193049717154. Its totient is φ = 47275351344.

The previous prime is 102432235823. The next prime is 102432235861. The reversal of 102432235828 is 828532234201.

It can be written as a sum of positive squares in only one way, i.e., 70914624804 + 31517611024 = 266298^2 + 177532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102432235823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2285725 + ... + 2330107.

Almost surely, 2^102432235828 is an apocalyptic number.

It is an amenable number.

102432235828 is a deficient number, since it is larger than the sum of its proper divisors (90617481326).

102432235828 is an frugal number, since it uses more digits than its factorization.

102432235828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88783 (or 44398 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 102432235828 in words is "one hundred two billion, four hundred thirty-two million, two hundred thirty-five thousand, eight hundred twenty-eight".