40142433 has 8 divisors (see below), whose sum is σ = 53621568. Its totient is φ = 26712464.

The previous prime is 40142419. The next prime is 40142449. The reversal of 40142433 is 33424104.

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

It is a cyclic number.

It is not a de Polignac number, because 40142433 - 2⁹ = 40141921 is a prime.

It is a super-2 number, since 2×40142433² = 3222829854318978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40142413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10341 + ... + 13682.

It is an arithmetic number, because the mean of its divisors is an integer number (6702696).

Almost surely, 2^40142433 is an apocalyptic number.

It is an amenable number.

40142433 is a deficient number, since it is larger than the sum of its proper divisors (13479135).

40142433 is a wasteful number, since it uses less digits than its factorization.

40142433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24583.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40142433 is about 6335.8056314884. The cubic root of 40142433 is about 342.4006368130.

Adding to 40142433 its reverse (33424104), we get a palindrome (73566537).

The spelling of 40142433 in words is "forty million, one hundred forty-two thousand, four hundred thirty-three".