40702305 has 16 divisors (see below), whose sum is σ = 74427264. Its totient is φ = 18606720.

The previous prime is 40702253. The next prime is 40702307. The reversal of 40702305 is 50320704.

It is a happy number.

It is not a de Polignac number, because 40702305 - 2⁷ = 40702177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40702307) 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 15 ways as a sum of consecutive naturals, for example, 193716 + ... + 193925.

It is an arithmetic number, because the mean of its divisors is an integer number (4651704).

Almost surely, 2^40702305 is an apocalyptic number.

It is an amenable number.

40702305 is a deficient number, since it is larger than the sum of its proper divisors (33724959).

40702305 is a wasteful number, since it uses less digits than its factorization.

40702305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387656.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 40702305 is about 6379.8358129344. The cubic root of 40702305 is about 343.9851292697.

The spelling of 40702305 in words is "forty million, seven hundred two thousand, three hundred five".