120728502 has 32 divisors (see below), whose sum is σ = 268702560. Its totient is φ = 40180320.

The previous prime is 120728501. The next prime is 120728513. The reversal of 120728502 is 205827021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120728501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44752 + ... + 47372.

It is an arithmetic number, because the mean of its divisors is an integer number (8396955).

Almost surely, 2^120728502 is an apocalyptic number.

120728502 is an abundant number, since it is smaller than the sum of its proper divisors (147974058).

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

120728502 is a wasteful number, since it uses less digits than its factorization.

120728502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 120728502 is about 10987.6522515049. The cubic root of 120728502 is about 494.2385353826.

The spelling of 120728502 in words is "one hundred twenty million, seven hundred twenty-eight thousand, five hundred two".