39930569 has 16 divisors (see below), whose sum is σ = 48521088. Its totient is φ = 32078592.

The previous prime is 39930563. The next prime is 39930607. The reversal of 39930569 is 96503993.

It is not a de Polignac number, because 39930569 - 2¹² = 39926473 is a prime.

It is a super-2 number, since 2×39930569² = 3188900681327522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39930563) 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, 35987 + ... + 37079.

It is an arithmetic number, because the mean of its divisors is an integer number (3032568).

Almost surely, 2^39930569 is an apocalyptic number.

It is an amenable number.

39930569 is a deficient number, since it is larger than the sum of its proper divisors (8590519).

39930569 is a wasteful number, since it uses less digits than its factorization.

39930569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424.

The product of its (nonzero) digits is 196830, while the sum is 44.

The square root of 39930569 is about 6319.0639338434. The cubic root of 39930569 is about 341.7971991691.

The spelling of 39930569 in words is "thirty-nine million, nine hundred thirty thousand, five hundred sixty-nine".