102742402 has 16 divisors (see below), whose sum is σ = 176264640. Its totient is φ = 43998768.

The previous prime is 102742399. The next prime is 102742429. The reversal of 102742402 is 204247201.

It is a happy number.

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, 27193 + ... + 30739.

It is an arithmetic number, because the mean of its divisors is an integer number (11016540).

Almost surely, 2^102742402 is an apocalyptic number.

102742402 is a deficient number, since it is larger than the sum of its proper divisors (73522238).

102742402 is a wasteful number, since it uses less digits than its factorization.

102742402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 102742402 is about 10136.1926777267. The cubic root of 102742402 is about 468.3637108611.

Adding to 102742402 its reverse (204247201), we get a palindrome (306989603).

The spelling of 102742402 in words is "one hundred two million, seven hundred forty-two thousand, four hundred two".