40412669 has 6 divisors (see below), whose sum is σ = 44420670. Its totient is φ = 36738680.

The previous prime is 40412609. The next prime is 40412681. The reversal of 40412669 is 96621404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 407044 = 6325^2 + 638^2 .

It is not a de Polignac number, because 40412669 - 2¹⁶ = 40347133 is a prime.

It is a super-2 number, since 2×40412669² = 3266367631407122, 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 (40412609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166874 + ... + 167115.

It is an arithmetic number, because the mean of its divisors is an integer number (7403445).

Almost surely, 2^40412669 is an apocalyptic number.

It is an amenable number.

40412669 is a deficient number, since it is larger than the sum of its proper divisors (4008001).

40412669 is a wasteful number, since it uses less digits than its factorization.

40412669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334011 (or 334000 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40412669 is about 6357.0959564883. The cubic root of 40412669 is about 343.1672579985.

The spelling of 40412669 in words is "forty million, four hundred twelve thousand, six hundred sixty-nine".