40033761 has 8 divisors (see below), whose sum is σ = 53673984. Its totient is φ = 26541360.

The previous prime is 40033739. The next prime is 40033771. The reversal of 40033761 is 16733004.

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

It is not a de Polignac number, because 40033761 - 2¹¹ = 40031713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40033771) 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, 36321 + ... + 37406.

It is an arithmetic number, because the mean of its divisors is an integer number (6709248).

Almost surely, 2^40033761 is an apocalyptic number.

It is an amenable number.

40033761 is a deficient number, since it is larger than the sum of its proper divisors (13640223).

40033761 is a wasteful number, since it uses less digits than its factorization.

40033761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73911.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 40033761 is about 6327.2237987920. The cubic root of 40033761 is about 342.0913797746.

Adding to 40033761 its reverse (16733004), we get a palindrome (56766765).

The spelling of 40033761 in words is "forty million, thirty-three thousand, seven hundred sixty-one".