120421040 has 40 divisors (see below), whose sum is σ = 280534128. Its totient is φ = 48072960.

The previous prime is 120421033. The next prime is 120421099. The reversal of 120421040 is 40124021.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50270 + ... + 52610.

Almost surely, 2^120421040 is an apocalyptic number.

120421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120421040 is an abundant number, since it is smaller than the sum of its proper divisors (160113088).

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

120421040 is a wasteful number, since it uses less digits than its factorization.

120421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997 (or 2991 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 120421040 is about 10973.6520812353. The cubic root of 120421040 is about 493.8186158980.

Adding to 120421040 its reverse (40124021), we get a palindrome (160545061).

The spelling of 120421040 in words is "one hundred twenty million, four hundred twenty-one thousand, forty".