40856142 has 32 divisors (see below), whose sum is σ = 85598208. Its totient is φ = 12975776.

The previous prime is 40856089. The next prime is 40856147. The reversal of 40856142 is 24165804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40856147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52468 + ... + 53240.

It is an arithmetic number, because the mean of its divisors is an integer number (2674944).

Almost surely, 2^40856142 is an apocalyptic number.

40856142 is an abundant number, since it is smaller than the sum of its proper divisors (44742066).

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

40856142 is a wasteful number, since it uses less digits than its factorization.

40856142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 40856142 is about 6391.8809438224. The cubic root of 40856142 is about 344.4179557924.

The spelling of 40856142 in words is "forty million, eight hundred fifty-six thousand, one hundred forty-two".