102432402 has 12 divisors (see below), whose sum is σ = 221936910. Its totient is φ = 34144128.

The previous prime is 102432397. The next prime is 102432403. The reversal of 102432402 is 204234201.

It can be written as a sum of positive squares in only one way, i.e., 77422401 + 25010001 = 8799^2 + 5001^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5690689 = 102432402 / (1 + 0 + 2 + 4 + 3 + 2 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (102432403) 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, 2845327 + ... + 2845362.

Almost surely, 2^102432402 is an apocalyptic number.

102432402 is an abundant number, since it is smaller than the sum of its proper divisors (119504508).

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

102432402 is a wasteful number, since it uses less digits than its factorization.

102432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690697 (or 5690694 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 102432402 is about 10120.8893877959. The cubic root of 102432402 is about 467.8921787554.

Adding to 102432402 its reverse (204234201), we get a palindrome (306666603).

The spelling of 102432402 in words is "one hundred two million, four hundred thirty-two thousand, four hundred two".