56440142 has 8 divisors (see below), whose sum is σ = 92356632. Its totient is φ = 25654600.

The previous prime is 56440117. The next prime is 56440159. The reversal of 56440142 is 24104465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282709 + ... + 1282752.

It is an arithmetic number, because the mean of its divisors is an integer number (11544579).

Almost surely, 2^56440142 is an apocalyptic number.

56440142 is a deficient number, since it is larger than the sum of its proper divisors (35916490).

56440142 is a wasteful number, since it uses less digits than its factorization.

56440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565474.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 56440142 is about 7512.6654391101. The cubic root of 56440142 is about 383.5859568994.

The spelling of 56440142 in words is "fifty-six million, four hundred forty thousand, one hundred forty-two".