40142456 has 16 divisors (see below), whose sum is σ = 75660000. Its totient is φ = 19966464.

The previous prime is 40142449. The next prime is 40142483. The reversal of 40142456 is 65424104.

It is a super-2 number, since 2×40142456² = 3222833547423872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11456 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (4728750).

Almost surely, 2^40142456 is an apocalyptic number.

It is an amenable number.

40142456 is a deficient number, since it is larger than the sum of its proper divisors (35517544).

40142456 is a wasteful number, since it uses less digits than its factorization.

40142456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26198 (or 26194 counting only the distinct ones).

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

The square root of 40142456 is about 6335.8074465691. The cubic root of 40142456 is about 342.4007022069.

The spelling of 40142456 in words is "forty million, one hundred forty-two thousand, four hundred fifty-six".