102517428 has 36 divisors (see below), whose sum is σ = 259028448. Its totient is φ = 31543200.

The previous prime is 102517399. The next prime is 102517447. The reversal of 102517428 is 824715201.

102517428 = T₁₇₇ + T₁₇₈ + ... + T₈₅₂.

It is a junction number, because it is equal to n+sod(n) for n = 102517395 and 102517404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23248 + ... + 27303.

Almost surely, 2^102517428 is an apocalyptic number.

It is an amenable number.

102517428 is an abundant number, since it is smaller than the sum of its proper divisors (156511020).

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

102517428 is a wasteful number, since it uses less digits than its factorization.

102517428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50584 (or 50569 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 102517428 is about 10125.0890366456. The cubic root of 102517428 is about 468.0216039410.

The spelling of 102517428 in words is "one hundred two million, five hundred seventeen thousand, four hundred twenty-eight".