102909480 has 32 divisors (see below), whose sum is σ = 308728800. Its totient is φ = 27442496.

The previous prime is 102909409. The next prime is 102909481. The reversal of 102909480 is 84909201.

It is a super-3 number, since 3×102909480³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (102909481) 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, 428670 + ... + 428909.

It is an arithmetic number, because the mean of its divisors is an integer number (9647775).

Almost surely, 2^102909480 is an apocalyptic number.

102909480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102909480 is an abundant number, since it is smaller than the sum of its proper divisors (205819320).

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

102909480 is a wasteful number, since it uses less digits than its factorization.

102909480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857593 (or 857589 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 102909480 is about 10144.4309845353. The cubic root of 102909480 is about 468.6174551471.

The spelling of 102909480 in words is "one hundred two million, nine hundred nine thousand, four hundred eighty".