40691776 has 14 divisors (see below), whose sum is σ = 80747870. Its totient is φ = 20345856.

The previous prime is 40691753. The next prime is 40691797. The reversal of 40691776 is 67719604.

It can be written as a sum of positive squares in only one way, i.e., 35046400 + 5645376 = 5920^2 + 2376^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317841 + ... + 317968.

It is an arithmetic number, because the mean of its divisors is an integer number (5767705).

Almost surely, 2^40691776 is an apocalyptic number.

It is an amenable number.

40691776 is a deficient number, since it is larger than the sum of its proper divisors (40056094).

40691776 is an equidigital number, since it uses as much as digits as its factorization.

40691776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635821 (or 635811 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 40691776 is about 6379.0105815871. The cubic root of 40691776 is about 343.9554656608.

The spelling of 40691776 in words is "forty million, six hundred ninety-one thousand, seven hundred seventy-six".