70393444 has 18 divisors (see below), whose sum is σ = 135406502. Its totient is φ = 31996800.

The previous prime is 70393441. The next prime is 70393459. The reversal of 70393444 is 44439307.

It can be written as a sum of positive squares in only one way, i.e., 37675044 + 32718400 = 6138^2 + 5720^2 .

It is a super-2 number, since 2×70393444² = 9910473916362272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70393441) 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 5 ways as a sum of consecutive naturals, for example, 72237 + ... + 73204.

Almost surely, 2^70393444 is an apocalyptic number.

It is an amenable number.

70393444 is a deficient number, since it is larger than the sum of its proper divisors (65013058).

70393444 is a wasteful number, since it uses less digits than its factorization.

70393444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145467 (or 145454 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 70393444 is about 8390.0800949693. The cubic root of 70393444 is about 412.8992283066.

The spelling of 70393444 in words is "seventy million, three hundred ninety-three thousand, four hundred forty-four".