120257838 has 64 divisors (see below), whose sum is σ = 283348800. Its totient is φ = 37739520.

The previous prime is 120257833. The next prime is 120257857. The reversal of 120257838 is 838752021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120257833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63270 + ... + 65142.

It is an arithmetic number, because the mean of its divisors is an integer number (4427325).

Almost surely, 2^120257838 is an apocalyptic number.

120257838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120257838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141674400).

120257838 is an abundant number, since it is smaller than the sum of its proper divisors (163090962).

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

120257838 is a wasteful number, since it uses less digits than its factorization.

120257838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 120257838 is about 10966.2134759451. The cubic root of 120257838 is about 493.5954305892.

The spelling of 120257838 in words is "one hundred twenty million, two hundred fifty-seven thousand, eight hundred thirty-eight".