40307692 has 12 divisors (see below), whose sum is σ = 70584696. Its totient is φ = 20140640.

The previous prime is 40307681. The next prime is 40307693. The reversal of 40307692 is 29670304.

40307692 is a modest number, since divided by 307692 gives 40 as remainder.

It is not an unprimeable number, because it can be changed into a prime (40307693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7467 + ... + 11677.

It is an arithmetic number, because the mean of its divisors is an integer number (5882058).

Almost surely, 2^40307692 is an apocalyptic number.

It is an amenable number.

40307692 is a deficient number, since it is larger than the sum of its proper divisors (30277004).

40307692 is a wasteful number, since it uses less digits than its factorization.

40307692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608 (or 6606 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 40307692 is about 6348.8339086796. The cubic root of 40307692 is about 342.8698602756.

Adding to 40307692 its reverse (29670304), we get a palindrome (69977996).

The spelling of 40307692 in words is "forty million, three hundred seven thousand, six hundred ninety-two".