40469379 has 16 divisors (see below), whose sum is σ = 55610112. Its totient is φ = 26159328.

The previous prime is 40469357. The next prime is 40469383. The reversal of 40469379 is 97396404.

It is not a de Polignac number, because 40469379 - 2⁵ = 40469347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40469379.

It is not an unprimeable number, because it can be changed into a prime (40469309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48762 + ... + 49584.

It is an arithmetic number, because the mean of its divisors is an integer number (3475632).

Almost surely, 2^40469379 is an apocalyptic number.

40469379 is a deficient number, since it is larger than the sum of its proper divisors (15140733).

40469379 is a wasteful number, since it uses less digits than its factorization.

40469379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 40469379 is about 6361.5547627919. The cubic root of 40469379 is about 343.3277020683.

Subtracting 40469379 from its reverse (97396404), we obtain a square (56927025 = 7545²).

The spelling of 40469379 in words is "forty million, four hundred sixty-nine thousand, three hundred seventy-nine".