40768566 has 16 divisors (see below), whose sum is σ = 85828800. Its totient is φ = 12874248.

The previous prime is 40768543. The next prime is 40768571. The reversal of 40768566 is 66586704.

It is a happy number.

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, 178696 + ... + 178923.

It is an arithmetic number, because the mean of its divisors is an integer number (5364300).

Almost surely, 2^40768566 is an apocalyptic number.

40768566 is an abundant number, since it is smaller than the sum of its proper divisors (45060234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40768566 is a wasteful number, since it uses less digits than its factorization.

40768566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357643.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 40768566 is about 6385.0267031548. The cubic root of 40768566 is about 344.1716907054.

The spelling of 40768566 in words is "forty million, seven hundred sixty-eight thousand, five hundred sixty-six".