4000070 has 32 divisors (see below), whose sum is σ = 7797600. Its totient is φ = 1472256.

The previous prime is 4000067. The next prime is 4000079. The reversal of 4000070 is 700004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000079) 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, 6746 + ... + 7314.

It is an arithmetic number, because the mean of its divisors is an integer number (243675).

Almost surely, 2^4000070 is an apocalyptic number.

4000070 is a deficient number, since it is larger than the sum of its proper divisors (3797530).

4000070 is a wasteful number, since it uses less digits than its factorization.

4000070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

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

The square root of 4000070 is about 2000.0174999234. The cubic root of 4000070 is about 158.7410311754.

Adding to 4000070 its reverse (700004), we get a palindrome (4700074).

The spelling of 4000070 in words is "four million, seventy", and thus it is an aban number.