120828740 has 12 divisors (see below), whose sum is σ = 253740396. Its totient is φ = 48331488.

The previous prime is 120828737. The next prime is 120828749. The reversal of 120828740 is 47828021.

It can be written as a sum of positive squares in 2 ways, for example, as 90973444 + 29855296 = 9538^2 + 5464^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 120828697 and 120828706.

It is not an unprimeable number, because it can be changed into a prime (120828749) 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, 3020699 + ... + 3020738.

It is an arithmetic number, because the mean of its divisors is an integer number (21145033).

Almost surely, 2^120828740 is an apocalyptic number.

120828740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120828740 is an abundant number, since it is smaller than the sum of its proper divisors (132911656).

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

120828740 is a wasteful number, since it uses less digits than its factorization.

120828740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041446 (or 6041444 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 120828740 is about 10992.2126980877. The cubic root of 120828740 is about 494.3752823722.

The spelling of 120828740 in words is "one hundred twenty million, eight hundred twenty-eight thousand, seven hundred forty".