120403400 has 48 divisors (see below), whose sum is σ = 301478100. Its totient is φ = 44455680.

The previous prime is 120403379. The next prime is 120403427. The reversal of 120403400 is 4304021.

It can be written as a sum of positive squares in 6 ways, for example, as 40729924 + 79673476 = 6382^2 + 8926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20555 + ... + 25754.

Almost surely, 2^120403400 is an apocalyptic number.

120403400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120403400 is an abundant number, since it is smaller than the sum of its proper divisors (181074700).

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

120403400 is a wasteful number, since it uses less digits than its factorization.

120403400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46338 (or 46329 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 120403400 is about 10972.8483084384. The cubic root of 120403400 is about 493.7945022111.

Adding to 120403400 its reverse (4304021), we get a palindrome (124707421).

The spelling of 120403400 in words is "one hundred twenty million, four hundred three thousand, four hundred".