40705965 has 12 divisors (see below), whose sum is σ = 70557084. Its totient is φ = 21709824.

The previous prime is 40705949. The next prime is 40705967. The reversal of 40705965 is 56950704.

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 21178404 = 4419^2 + 4602^2 .

It is not a de Polignac number, because 40705965 - 2⁴ = 40705949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40705967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452244 + ... + 452333.

It is an arithmetic number, because the mean of its divisors is an integer number (5879757).

Almost surely, 2^40705965 is an apocalyptic number.

40705965 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40705965 is a deficient number, since it is larger than the sum of its proper divisors (29851119).

40705965 is a wasteful number, since it uses less digits than its factorization.

40705965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904588 (or 904585 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 40705965 is about 6380.1226477239. The cubic root of 40705965 is about 343.9954394789.

The spelling of 40705965 in words is "forty million, seven hundred five thousand, nine hundred sixty-five".