40470705 has 32 divisors (see below), whose sum is σ = 78491520. Its totient is φ = 19621440.

The previous prime is 40470701. The next prime is 40470721. The reversal of 40470705 is 50707404.

It is not a de Polignac number, because 40470705 - 2² = 40470701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40470701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12142 + ... + 15111.

It is an arithmetic number, because the mean of its divisors is an integer number (2452860).

Almost surely, 2^40470705 is an apocalyptic number.

40470705 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40470705 is a deficient number, since it is larger than the sum of its proper divisors (38020815).

40470705 is a wasteful number, since it uses less digits than its factorization.

40470705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27278 (or 27272 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40470705 is about 6361.6589817437. The cubic root of 40470705 is about 343.3314517969.

The spelling of 40470705 in words is "forty million, four hundred seventy thousand, seven hundred five".