120391478 has 8 divisors (see below), whose sum is σ = 182275272. Its totient is φ = 59633056.

The previous prime is 120391477. The next prime is 120391511. The reversal of 120391478 is 874193021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120391477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281075 + ... + 281502.

It is an arithmetic number, because the mean of its divisors is an integer number (22784409).

Almost surely, 2^120391478 is an apocalyptic number.

120391478 is a deficient number, since it is larger than the sum of its proper divisors (61883794).

120391478 is a wasteful number, since it uses less digits than its factorization.

120391478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562686.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 120391478 is about 10972.3050449757. The cubic root of 120391478 is about 493.7782036338.

The spelling of 120391478 in words is "one hundred twenty million, three hundred ninety-one thousand, four hundred seventy-eight".