40133641 has 8 divisors (see below), whose sum is σ = 41622464. Its totient is φ = 38666160.

The previous prime is 40133633. The next prime is 40133693. The reversal of 40133641 is 14633104.

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 40133641 - 2³ = 40133633 is a prime.

It is a super-2 number, since 2×40133641² = 3221418279833762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40134641) 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, 1455 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (5202808).

Almost surely, 2^40133641 is an apocalyptic number.

It is an amenable number.

40133641 is a deficient number, since it is larger than the sum of its proper divisors (1488823).

40133641 is a wasteful number, since it uses less digits than its factorization.

40133641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40133641 is about 6335.1117590773. Note that the first 3 decimals coincide. The cubic root of 40133641 is about 342.3756374463.

Adding to 40133641 its reverse (14633104), we get a palindrome (54766745).

The spelling of 40133641 in words is "forty million, one hundred thirty-three thousand, six hundred forty-one".