40040662 has 4 divisors (see below), whose sum is σ = 60060996. Its totient is φ = 20020330.

The previous prime is 40040647. The next prime is 40040669. The reversal of 40040662 is 26604004.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40040662² = 3206509226796488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010164 + ... + 10010167.

It is an arithmetic number, because the mean of its divisors is an integer number (15015249).

Almost surely, 2^40040662 is an apocalyptic number.

40040662 is a deficient number, since it is larger than the sum of its proper divisors (20020334).

40040662 is a wasteful number, since it uses less digits than its factorization.

40040662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020333.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40040662 is about 6327.7691171534. The cubic root of 40040662 is about 342.1110351598. Note that the first 3 decimals are identical.

Adding to 40040662 its reverse (26604004), we get a palindrome (66644666).

The spelling of 40040662 in words is "forty million, forty thousand, six hundred sixty-two".