102863240 has 16 divisors (see below), whose sum is σ = 231442380. Its totient is φ = 41145280.

The previous prime is 102863237. The next prime is 102863249. The reversal of 102863240 is 42368201.

It can be written as a sum of positive squares in 2 ways, for example, as 98049604 + 4813636 = 9902^2 + 2194^2 .

It is a super-2 number, since 2×102863240² = 21161692286595200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102863249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285751 + ... + 1285830.

Almost surely, 2^102863240 is an apocalyptic number.

102863240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102863240 is an abundant number, since it is smaller than the sum of its proper divisors (128579140).

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

102863240 is a wasteful number, since it uses less digits than its factorization.

102863240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571592 (or 2571588 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 102863240 is about 10142.1516454843. The cubic root of 102863240 is about 468.5472571523.

The spelling of 102863240 in words is "one hundred two million, eight hundred sixty-three thousand, two hundred forty".