102379720 has 16 divisors (see below), whose sum is σ = 230354460. Its totient is φ = 40951872.

The previous prime is 102379699. The next prime is 102379757. The reversal of 102379720 is 27973201.

It can be written as a sum of positive squares in 2 ways, for example, as 91049764 + 11329956 = 9542^2 + 3366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279707 + ... + 1279786.

Almost surely, 2^102379720 is an apocalyptic number.

102379720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102379720 is an abundant number, since it is smaller than the sum of its proper divisors (127974740).

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

102379720 is a wasteful number, since it uses less digits than its factorization.

102379720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559504 (or 2559500 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 102379720 is about 10118.2864161873. The cubic root of 102379720 is about 467.8119511376.

The spelling of 102379720 in words is "one hundred two million, three hundred seventy-nine thousand, seven hundred twenty".