108272640 has 352 divisors, whose sum is σ = 424465920. Its totient is φ = 23003136.

The previous prime is 108272639. The next prime is 108272699. The reversal of 108272640 is 46272801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 108272598 and 108272607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2042854 + ... + 2042906.

Almost surely, 2^108272640 is an apocalyptic number.

108272640 is a gapful number since it is divisible by the number (10) 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 108272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212232960).

108272640 is an abundant number, since it is smaller than the sum of its proper divisors (316193280).

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

108272640 is a wasteful number, since it uses less digits than its factorization.

108272640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 108272640 is about 10405.4139754264. The cubic root of 108272640 is about 476.6207094319.

The spelling of 108272640 in words is "one hundred eight million, two hundred seventy-two thousand, six hundred forty".