40132745 has 8 divisors (see below), whose sum is σ = 48206016. Its totient is φ = 32075056.

The previous prime is 40132739. The next prime is 40132747. The reversal of 40132745 is 54723104.

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 40132745 - 2¹⁸ = 39870601 is a prime.

It is a super-2 number, since 2×40132745² = 3221274442470050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40132747) 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, 2834 + ... + 9396.

It is an arithmetic number, because the mean of its divisors is an integer number (6025752).

Almost surely, 2^40132745 is an apocalyptic number.

It is an amenable number.

40132745 is a deficient number, since it is larger than the sum of its proper divisors (8073271).

40132745 is a wasteful number, since it uses less digits than its factorization.

40132745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 40132745 is about 6335.0410416982. The cubic root of 40132745 is about 342.3730895352.

Adding to 40132745 its reverse (54723104), we get a palindrome (94855849).

The spelling of 40132745 in words is "forty million, one hundred thirty-two thousand, seven hundred forty-five".