102770380 has 12 divisors (see below), whose sum is σ = 215817840. Its totient is φ = 41108144.

The previous prime is 102770309. The next prime is 102770383. The reversal of 102770380 is 83077201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102770383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569240 + ... + 2569279.

It is an arithmetic number, because the mean of its divisors is an integer number (17984820).

Almost surely, 2^102770380 is an apocalyptic number.

102770380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102770380 is an abundant number, since it is smaller than the sum of its proper divisors (113047460).

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

102770380 is a wasteful number, since it uses less digits than its factorization.

102770380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138528 (or 5138526 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 102770380 is about 10137.5726877789. The cubic root of 102770380 is about 468.4062207057.

The spelling of 102770380 in words is "one hundred two million, seven hundred seventy thousand, three hundred eighty".