120420510 has 64 divisors (see below), whose sum is σ = 331195392. Its totient is φ = 27449856.

The previous prime is 120420497. The next prime is 120420529. The reversal of 120420510 is 15024021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120420510.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124047 + ... + 125013.

It is an arithmetic number, because the mean of its divisors is an integer number (5174928).

Almost surely, 2^120420510 is an apocalyptic number.

120420510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120420510 is an abundant number, since it is smaller than the sum of its proper divisors (210774882).

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

120420510 is a wasteful number, since it uses less digits than its factorization.

120420510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 120420510 is about 10973.6279324570. The cubic root of 120420510 is about 493.8178914282.

Adding to 120420510 its reverse (15024021), we get a palindrome (135444531).

The spelling of 120420510 in words is "one hundred twenty million, four hundred twenty thousand, five hundred ten".