102772780 has 48 divisors (see below), whose sum is σ = 236144160. Its totient is φ = 37260800.

The previous prime is 102772771. The next prime is 102772793. The reversal of 102772780 is 87277201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124770 + ... + 125590.

It is an arithmetic number, because the mean of its divisors is an integer number (4919670).

Almost surely, 2^102772780 is an apocalyptic number.

102772780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102772780 is an abundant number, since it is smaller than the sum of its proper divisors (133371380).

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

102772780 is a wasteful number, since it uses less digits than its factorization.

102772780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 102772780 is about 10137.6910586188. The cubic root of 102772780 is about 468.4098669125.

The spelling of 102772780 in words is "one hundred two million, seven hundred seventy-two thousand, seven hundred eighty".