40442133 has 8 divisors (see below), whose sum is σ = 57094848. Its totient is φ = 25375424.

The previous prime is 40442131. The next prime is 40442141. The reversal of 40442133 is 33124404.

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

It is not a de Polignac number, because 40442133 - 2¹ = 40442131 is a prime.

It is a super-2 number, since 2×40442133² = 3271132243179378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 396441 + ... + 396542.

It is an arithmetic number, because the mean of its divisors is an integer number (7136856).

Almost surely, 2^40442133 is an apocalyptic number.

It is an amenable number.

40442133 is a deficient number, since it is larger than the sum of its proper divisors (16652715).

40442133 is a wasteful number, since it uses less digits than its factorization.

40442133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793003.

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

The square root of 40442133 is about 6359.4129446042. The cubic root of 40442133 is about 343.2506363390.

Adding to 40442133 its reverse (33124404), we get a palindrome (73566537).

The spelling of 40442133 in words is "forty million, four hundred forty-two thousand, one hundred thirty-three".