102742684 has 48 divisors (see below), whose sum is σ = 200672640. Its totient is φ = 45639360.

The previous prime is 102742681. The next prime is 102742687. The reversal of 102742684 is 486247201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102742681) and next prime (102742687).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102742681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654334 + ... + 654490.

It is an arithmetic number, because the mean of its divisors is an integer number (4180680).

Almost surely, 2^102742684 is an apocalyptic number.

It is an amenable number.

102742684 is a deficient number, since it is larger than the sum of its proper divisors (97929956).

102742684 is a wasteful number, since it uses less digits than its factorization.

102742684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 102742684 is about 10136.2065882657. The cubic root of 102742684 is about 468.3641393711.

Adding to 102742684 its reverse (486247201), we get a palindrome (588989885).

The spelling of 102742684 in words is "one hundred two million, seven hundred forty-two thousand, six hundred eighty-four".