40779316 has 6 divisors (see below), whose sum is σ = 71363810. Its totient is φ = 20389656.

The previous prime is 40779289. The next prime is 40779317. The reversal of 40779316 is 61397704.

It can be written as a sum of positive squares in only one way, i.e., 38688400 + 2090916 = 6220^2 + 1446^2 .

It is a super-2 number, since 2×40779316² = 3325905226855712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40779317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5097411 + ... + 5097418.

Almost surely, 2^40779316 is an apocalyptic number.

It is an amenable number.

40779316 is a deficient number, since it is larger than the sum of its proper divisors (30584494).

40779316 is a wasteful number, since it uses less digits than its factorization.

40779316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194833 (or 10194831 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 40779316 is about 6385.8684609065. The cubic root of 40779316 is about 344.2019388508.

The spelling of 40779316 in words is "forty million, seven hundred seventy-nine thousand, three hundred sixteen".