102990888 has 192 divisors, whose sum is σ = 374774400. Its totient is φ = 24675840.

The previous prime is 102990883. The next prime is 102990929. The reversal of 102990888 is 888099201.

It is a super-2 number, since 2×102990888² = 21214246022057088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102990883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71358 + ... + 72786.

It is an arithmetic number, because the mean of its divisors is an integer number (1951950).

Almost surely, 2^102990888 is an apocalyptic number.

102990888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102990888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187387200).

102990888 is an abundant number, since it is smaller than the sum of its proper divisors (271783512).

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

102990888 is a wasteful number, since it uses less digits than its factorization.

102990888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 102990888 is about 10148.4426391442. The cubic root of 102990888 is about 468.7409914002.

The spelling of 102990888 in words is "one hundred two million, nine hundred ninety thousand, eight hundred eighty-eight".