1120400439 has 4 divisors (see below), whose sum is σ = 1493867256. Its totient is φ = 746933624.

The previous prime is 1120400431. The next prime is 1120400507. The reversal of 1120400439 is 9340040211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1120400439 - 2³ = 1120400431 is a prime.

It is a super-2 number, since 2×1120400439² = 2510594287422785442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120400431) 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 3 ways as a sum of consecutive naturals, for example, 186733404 + ... + 186733409.

It is an arithmetic number, because the mean of its divisors is an integer number (373466814).

Almost surely, 2^1120400439 is an apocalyptic number.

1120400439 is a deficient number, since it is larger than the sum of its proper divisors (373466817).

1120400439 is an equidigital number, since it uses as much as digits as its factorization.

1120400439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373466816.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1120400439 is about 33472.3832285662. The cubic root of 1120400439 is about 1038.6225721196.

The spelling of 1120400439 in words is "one billion, one hundred twenty million, four hundred thousand, four hundred thirty-nine".