120140742 has 32 divisors (see below), whose sum is σ = 251403264. Its totient is φ = 38235200.

The previous prime is 120140731. The next prime is 120140773. The reversal of 120140742 is 247041021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6367 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (7856352).

Almost surely, 2^120140742 is an apocalyptic number.

120140742 is an abundant number, since it is smaller than the sum of its proper divisors (131262522).

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

120140742 is a wasteful number, since it uses less digits than its factorization.

120140742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10484.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 120140742 is about 10960.8732316362. The cubic root of 120140742 is about 493.4351726492.

Adding to 120140742 its reverse (247041021), we get a palindrome (367181763).

The spelling of 120140742 in words is "one hundred twenty million, one hundred forty thousand, seven hundred forty-two".