70404070 has 32 divisors (see below), whose sum is σ = 139638816. Its totient is φ = 25344000.

The previous prime is 70404043. The next prime is 70404071. The reversal of 70404070 is 7040407.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70404071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7942 + ... + 14278.

It is an arithmetic number, because the mean of its divisors is an integer number (4363713).

Almost surely, 2^70404070 is an apocalyptic number.

70404070 is a deficient number, since it is larger than the sum of its proper divisors (69234746).

70404070 is a wasteful number, since it uses less digits than its factorization.

70404070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 70404070 is about 8390.7133189020. The cubic root of 70404070 is about 412.9200031884.

Adding to 70404070 its reverse (7040407), we get a palindrome (77444477).

The spelling of 70404070 in words is "seventy million, four hundred four thousand, seventy".