102371840 has 40 divisors (see below), whose sum is σ = 245458620. Its totient is φ = 40947712.

The previous prime is 102371839. The next prime is 102371879. The reversal of 102371840 is 48173201.

It can be written as a sum of positive squares in 2 ways, for example, as 95570176 + 6801664 = 9776^2 + 2608^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17435 + ... + 22554.

Almost surely, 2^102371840 is an apocalyptic number.

102371840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102371840 is an abundant number, since it is smaller than the sum of its proper divisors (143086780).

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

102371840 is an frugal number, since it uses more digits than its factorization.

102371840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40012 (or 39996 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 102371840 is about 10117.8970146963. The cubic root of 102371840 is about 467.7999485888.

The spelling of 102371840 in words is "one hundred two million, three hundred seventy-one thousand, eight hundred forty".