40662645 has 16 divisors (see below), whose sum is σ = 65149440. Its totient is φ = 21657024.

The previous prime is 40662637. The next prime is 40662647. The reversal of 40662645 is 54626604.

It is not a de Polignac number, because 40662645 - 2³ = 40662637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40662647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13596 + ... + 16314.

It is an arithmetic number, because the mean of its divisors is an integer number (4071840).

Almost surely, 2^40662645 is an apocalyptic number.

It is an amenable number.

40662645 is a deficient number, since it is larger than the sum of its proper divisors (24486795).

40662645 is a wasteful number, since it uses less digits than its factorization.

40662645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40662645 is about 6376.7268249471. The cubic root of 40662645 is about 343.8733675103.

The spelling of 40662645 in words is "forty million, six hundred sixty-two thousand, six hundred forty-five".