120400250 has 32 divisors (see below), whose sum is σ = 226139472. Its totient is φ = 48000000.

The previous prime is 120400243. The next prime is 120400261. The reversal of 120400250 is 52004021.

It can be written as a sum of positive squares in 8 ways, for example, as 2699449 + 117700801 = 1643^2 + 10849^2 .

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, 99650 + ... + 100850.

Almost surely, 2^120400250 is an apocalyptic number.

120400250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120400250 is a deficient number, since it is larger than the sum of its proper divisors (105739222).

120400250 is a wasteful number, since it uses less digits than its factorization.

120400250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 120400250 is about 10972.7047713861. The cubic root of 120400250 is about 493.7901959478.

Adding to 120400250 its reverse (52004021), we get a palindrome (172404271).

The spelling of 120400250 in words is "one hundred twenty million, four hundred thousand, two hundred fifty".