40749269 has 8 divisors (see below), whose sum is σ = 44848512. Its totient is φ = 36715840.

The previous prime is 40749259. The next prime is 40749287. The reversal of 40749269 is 96294704.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40749269 is a prime.

It is a super-2 number, since 2×40749269² = 3321005848068722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40749229) 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, 15149 + ... + 17634.

It is an arithmetic number, because the mean of its divisors is an integer number (5606064).

Almost surely, 2^40749269 is an apocalyptic number.

It is an amenable number.

40749269 is a deficient number, since it is larger than the sum of its proper divisors (4099243).

40749269 is a wasteful number, since it uses less digits than its factorization.

40749269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32907.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 40749269 is about 6383.5154108062. The cubic root of 40749269 is about 344.1173798322.

The spelling of 40749269 in words is "forty million, seven hundred forty-nine thousand, two hundred sixty-nine".