102723780 has 96 divisors (see below), whose sum is σ = 294940800. Its totient is φ = 26707968.

The previous prime is 102723763. The next prime is 102723787. The reversal of 102723780 is 87327201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (102723787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738951 + ... + 739089.

It is an arithmetic number, because the mean of its divisors is an integer number (3072300).

Almost surely, 2^102723780 is an apocalyptic number.

102723780 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 102723780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147470400).

102723780 is an abundant number, since it is smaller than the sum of its proper divisors (192217020).

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

102723780 is a wasteful number, since it uses less digits than its factorization.

102723780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 102723780 is about 10135.2740466156. The cubic root of 102723780 is about 468.3354122688.

The spelling of 102723780 in words is "one hundred two million, seven hundred twenty-three thousand, seven hundred eighty".