102774120 has 96 divisors (see below), whose sum is σ = 322509600. Its totient is φ = 26198656.

The previous prime is 102774109. The next prime is 102774127. The reversal of 102774120 is 21477201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102774127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62671 + ... + 64289.

It is an arithmetic number, because the mean of its divisors is an integer number (3359475).

Almost surely, 2^102774120 is an apocalyptic number.

102774120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102774120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161254800).

102774120 is an abundant number, since it is smaller than the sum of its proper divisors (219735480).

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

102774120 is a wasteful number, since it uses less digits than its factorization.

102774120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1652 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 102774120 is about 10137.7571484032. The cubic root of 102774120 is about 468.4119026866.

The spelling of 102774120 in words is "one hundred two million, seven hundred seventy-four thousand, one hundred twenty".