40232661 has 8 divisors (see below), whose sum is σ = 61306944. Its totient is φ = 22990080.

The previous prime is 40232651. The next prime is 40232669. The reversal of 40232661 is 16623204.

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

It is not a de Polignac number, because 40232661 - 2⁶ = 40232597 is a prime.

It is a super-2 number, since 2×40232661² = 3237334022281842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40232669) 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, 957900 + ... + 957941.

It is an arithmetic number, because the mean of its divisors is an integer number (7663368).

Almost surely, 2^40232661 is an apocalyptic number.

It is an amenable number.

40232661 is a deficient number, since it is larger than the sum of its proper divisors (21074283).

40232661 is a wasteful number, since it uses less digits than its factorization.

40232661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915851.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40232661 is about 6342.9221183931. The cubic root of 40232661 is about 342.6569823999.

Adding to 40232661 its reverse (16623204), we get a palindrome (56855865).

The spelling of 40232661 in words is "forty million, two hundred thirty-two thousand, six hundred sixty-one".