102807040 has 80 divisors (see below), whose sum is σ = 281758752. Its totient is φ = 35241984.

The previous prime is 102807017. The next prime is 102807083. The reversal of 102807040 is 40708201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15052 + ... + 20788.

Almost surely, 2^102807040 is an apocalyptic number.

102807040 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 102807040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140879376).

102807040 is an abundant number, since it is smaller than the sum of its proper divisors (178951712).

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

102807040 is an frugal number, since it uses more digits than its factorization.

102807040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 102807040 is about 10139.3806516966. The cubic root of 102807040 is about 468.4619103270.

The spelling of 102807040 in words is "one hundred two million, eight hundred seven thousand, forty".