102280772 has 24 divisors (see below), whose sum is σ = 206750880. Its totient is φ = 43756160.

The previous prime is 102280771. The next prime is 102280799. The reversal of 102280772 is 277082201.

It is a super-2 number, since 2×102280772² = 20922712641831968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102280771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67622 + ... + 69117.

It is an arithmetic number, because the mean of its divisors is an integer number (8614620).

Almost surely, 2^102280772 is an apocalyptic number.

It is an amenable number.

102280772 is an abundant number, since it is smaller than the sum of its proper divisors (104470108).

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

102280772 is a wasteful number, since it uses less digits than its factorization.

102280772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136771 (or 136769 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 102280772 is about 10113.3956710889. The cubic root of 102280772 is about 467.6611921870.

The spelling of 102280772 in words is "one hundred two million, two hundred eighty thousand, seven hundred seventy-two".