40142896 has 20 divisors (see below), whose sum is σ = 81871000. Its totient is φ = 19014912.

The previous prime is 40142863. The next prime is 40142929. The reversal of 40142896 is 69824104.

It is an interprime number because it is at equal distance from previous prime (40142863) and next prime (40142929).

It is a super-2 number, since 2×40142896² = 3222904198533632, which contains 22 as substring.

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, 65721 + ... + 66328.

It is an arithmetic number, because the mean of its divisors is an integer number (4093550).

Almost surely, 2^40142896 is an apocalyptic number.

It is an amenable number.

40142896 is an abundant number, since it is smaller than the sum of its proper divisors (41728104).

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

40142896 is a wasteful number, since it uses less digits than its factorization.

40142896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132076 (or 132070 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 40142896 is about 6335.8421697514. The cubic root of 40142896 is about 342.4019532162.

The spelling of 40142896 in words is "forty million, one hundred forty-two thousand, eight hundred ninety-six".