40669701 has 8 divisors (see below), whose sum is σ = 55487520. Its totient is φ = 26482512.

The previous prime is 40669693. The next prime is 40669757. The reversal of 40669701 is 10796604.

It is a happy number.

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

It is not a de Polignac number, because 40669701 - 2³ = 40669693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40669001) 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, 157506 + ... + 157763.

It is an arithmetic number, because the mean of its divisors is an integer number (6935940).

Almost surely, 2^40669701 is an apocalyptic number.

It is an amenable number.

40669701 is a deficient number, since it is larger than the sum of its proper divisors (14817819).

40669701 is a wasteful number, since it uses less digits than its factorization.

40669701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315315.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 40669701 is about 6377.2800628481. The cubic root of 40669701 is about 343.8932566096.

It can be divided in two parts, 406 and 69701, that added together give a palindrome (70107).

The spelling of 40669701 in words is "forty million, six hundred sixty-nine thousand, seven hundred one".