102990860 has 24 divisors (see below), whose sum is σ = 247178400. Its totient is φ = 35311104.

The previous prime is 102990851. The next prime is 102990863. The reversal of 102990860 is 68099201.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 102990860.

It is not an unprimeable number, because it can be changed into a prime (102990863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367685 + ... + 367964.

It is an arithmetic number, because the mean of its divisors is an integer number (10299100).

Almost surely, 2^102990860 is an apocalyptic number.

102990860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102990860 is an abundant number, since it is smaller than the sum of its proper divisors (144187540).

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

102990860 is a wasteful number, since it uses less digits than its factorization.

102990860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735665 (or 735663 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 102990860 is about 10148.4412596221. The cubic root of 102990860 is about 468.7409489215.

The spelling of 102990860 in words is "one hundred two million, nine hundred ninety thousand, eight hundred sixty".