40669395 has 32 divisors (see below), whose sum is σ = 71061312. Its totient is φ = 19740672.

The previous prime is 40669393. The next prime is 40669403. The reversal of 40669395 is 59396604.

It is not a de Polignac number, because 40669395 - 2¹ = 40669393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40669393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12807 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (2220666).

Almost surely, 2^40669395 is an apocalyptic number.

40669395 is a deficient number, since it is larger than the sum of its proper divisors (30391917).

40669395 is a wasteful number, since it uses less digits than its factorization.

40669395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 40669395 is about 6377.2560713837. The cubic root of 40669395 is about 343.8923941198.

The spelling of 40669395 in words is "forty million, six hundred sixty-nine thousand, three hundred ninety-five".