40026693 has 32 divisors (see below), whose sum is σ = 64512000. Its totient is φ = 21580416.

The previous prime is 40026689. The next prime is 40026697. The reversal of 40026693 is 39662004.

It is an interprime number because it is at equal distance from previous prime (40026689) and next prime (40026697).

It is not a de Polignac number, because 40026693 - 2² = 40026689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40026693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40026697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37633 + ... + 38681.

It is an arithmetic number, because the mean of its divisors is an integer number (2016000).

Almost surely, 2^40026693 is an apocalyptic number.

It is an amenable number.

40026693 is a deficient number, since it is larger than the sum of its proper divisors (24485307).

40026693 is a wasteful number, since it uses less digits than its factorization.

40026693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 40026693 is about 6326.6652353353. The cubic root of 40026693 is about 342.0712463995.

Adding to 40026693 its reverse (39662004), we get a palindrome (79688697).

The spelling of 40026693 in words is "forty million, twenty-six thousand, six hundred ninety-three".