40049667 has 32 divisors (see below), whose sum is σ = 70156800. Its totient is φ = 22093344.

The previous prime is 40049657. The next prime is 40049683. The reversal of 40049667 is 76694004.

It is not a de Polignac number, because 40049667 - 2⁷ = 40049539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40049617) 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, 1828 + ... + 9134.

It is an arithmetic number, because the mean of its divisors is an integer number (2192400).

Almost surely, 2^40049667 is an apocalyptic number.

40049667 is a deficient number, since it is larger than the sum of its proper divisors (30107133).

40049667 is a wasteful number, since it uses less digits than its factorization.

40049667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352 (or 7346 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 40049667 is about 6328.4806233408. The cubic root of 40049667 is about 342.1366797487.

The spelling of 40049667 in words is "forty million, forty-nine thousand, six hundred sixty-seven".