40070305 has 8 divisors (see below), whose sum is σ = 52455744. Its totient is φ = 29142000.

The previous prime is 40070293. The next prime is 40070333. The reversal of 40070305 is 50307004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40070305 - 2¹⁷ = 39939233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364221 + ... + 364330.

It is an arithmetic number, because the mean of its divisors is an integer number (6556968).

Almost surely, 2^40070305 is an apocalyptic number.

It is an amenable number.

40070305 is a deficient number, since it is larger than the sum of its proper divisors (12385439).

40070305 is a wasteful number, since it uses less digits than its factorization.

40070305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728567.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 40070305 is about 6330.1109784900. The cubic root of 40070305 is about 342.1954384917.

Adding to 40070305 its reverse (50307004), we get a palindrome (90377309).

The spelling of 40070305 in words is "forty million, seventy thousand, three hundred five".