40270665 has 8 divisors (see below), whose sum is σ = 64433088. Its totient is φ = 21477680.

The previous prime is 40270583. The next prime is 40270673. The reversal of 40270665 is 56607204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40270665 - 2¹³ = 40262473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342341 + ... + 1342370.

It is an arithmetic number, because the mean of its divisors is an integer number (8054136).

Almost surely, 2^40270665 is an apocalyptic number.

It is an amenable number.

40270665 is a deficient number, since it is larger than the sum of its proper divisors (24162423).

40270665 is a wasteful number, since it uses less digits than its factorization.

40270665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684719.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40270665 is about 6345.9171913916. The cubic root of 40270665 is about 342.7648403563.

Adding to 40270665 its reverse (56607204), we get a palindrome (96877869).

The spelling of 40270665 in words is "forty million, two hundred seventy thousand, six hundred sixty-five".