40663294 has 16 divisors (see below), whose sum is σ = 71330688. Its totient is φ = 17021592.

The previous prime is 40663283. The next prime is 40663297. The reversal of 40663294 is 49236604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40663297) 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, 33172 + ... + 34375.

It is an arithmetic number, because the mean of its divisors is an integer number (4458168).

Almost surely, 2^40663294 is an apocalyptic number.

40663294 is a deficient number, since it is larger than the sum of its proper divisors (30667394).

40663294 is a wasteful number, since it uses less digits than its factorization.

40663294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67599.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 40663294 is about 6376.7777129205. Note that the first 4 decimals coincide. The cubic root of 40663294 is about 343.8751969751.

Adding to 40663294 its reverse (49236604), we get a palindrome (89899898).

The spelling of 40663294 in words is "forty million, six hundred sixty-three thousand, two hundred ninety-four".