40707646 has 16 divisors (see below), whose sum is σ = 70477920. Its totient is φ = 17272800.

The previous prime is 40707617. The next prime is 40707661. The reversal of 40707646 is 64670704.

It is a super-2 number, since 2×40707646² = 3314224885722632, which contains 22 as substring.

It is a congruent number.

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, 12981 + ... + 15808.

It is an arithmetic number, because the mean of its divisors is an integer number (4404870).

Almost surely, 2^40707646 is an apocalyptic number.

40707646 is a deficient number, since it is larger than the sum of its proper divisors (29770274).

40707646 is a wasteful number, since it uses less digits than its factorization.

40707646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28899.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 40707646 is about 6380.2543836433. The cubic root of 40707646 is about 344.0001746439. Note that the first 3 decimals are identical.

The spelling of 40707646 in words is "forty million, seven hundred seven thousand, six hundred forty-six".