40705907 has 16 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 35246400.

The previous prime is 40705859. The next prime is 40705919. The reversal of 40705907 is 70950704.

It is a cyclic number.

It is not a de Polignac number, because 40705907 - 2⁶ = 40705843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40705927) 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, 18344 + ... + 20442.

It is an arithmetic number, because the mean of its divisors is an integer number (2910600).

Almost surely, 2^40705907 is an apocalyptic number.

40705907 is a deficient number, since it is larger than the sum of its proper divisors (5863693).

40705907 is a wasteful number, since it uses less digits than its factorization.

40705907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 40705907 is about 6380.1181023552. The cubic root of 40705907 is about 343.9952760979.

The spelling of 40705907 in words is "forty million, seven hundred five thousand, nine hundred seven".