120978398 has 8 divisors (see below), whose sum is σ = 182792592. Its totient is φ = 60047536.

The previous prime is 120978397. The next prime is 120978421. The reversal of 120978398 is 893879021.

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 (120978397) 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, 220490 + ... + 221037.

It is an arithmetic number, because the mean of its divisors is an integer number (22849074).

Almost surely, 2^120978398 is an apocalyptic number.

120978398 is a deficient number, since it is larger than the sum of its proper divisors (61814194).

120978398 is a wasteful number, since it uses less digits than its factorization.

120978398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441666.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 120978398 is about 10999.0180470804. The cubic root of 120978398 is about 494.5793085838.

The spelling of 120978398 in words is "one hundred twenty million, nine hundred seventy-eight thousand, three hundred ninety-eight".