120199742 has 16 divisors (see below), whose sum is σ = 197069712. Its totient is φ = 54648000.

The previous prime is 120199699. The next prime is 120199763. The reversal of 120199742 is 247991021.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 32759 + ... + 36242.

It is an arithmetic number, because the mean of its divisors is an integer number (12316857).

Almost surely, 2^120199742 is an apocalyptic number.

120199742 is a deficient number, since it is larger than the sum of its proper divisors (76869970).

120199742 is a wasteful number, since it uses less digits than its factorization.

120199742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69083.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 120199742 is about 10963.5642926924. The cubic root of 120199742 is about 493.5159332370.

The spelling of 120199742 in words is "one hundred twenty million, one hundred ninety-nine thousand, seven hundred forty-two".