40070 has 8 divisors (see below), whose sum is σ = 72144. Its totient is φ = 16024.

The previous prime is 40063. The next prime is 40087. The reversal of 40070 is 7004.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (9018).

2⁴⁰⁰⁷⁰ is an apocalyptic number.

40070 is a deficient number, since it is larger than the sum of its proper divisors (32074).

40070 is a wasteful number, since it uses less digits than its factorization.

40070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014.

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 40070 is about 200.1749235044. The cubic root of 40070 is about 34.2194570269.

Adding to 40070 its reverse (7004), we get a palindrome (47074).

The spelling of 40070 in words is "forty thousand, seventy", and thus it is an iban number.