70144394 has 8 divisors (see below), whose sum is σ = 105252420. Its totient is φ = 35060256.

The previous prime is 70144381. The next prime is 70144421. The reversal of 70144394 is 49344107.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42445225 + 27699169 = 6515^2 + 5263^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70144394.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7052 + ... + 13784.

Almost surely, 2^70144394 is an apocalyptic number.

70144394 is a deficient number, since it is larger than the sum of its proper divisors (35108026).

70144394 is a wasteful number, since it uses less digits than its factorization.

70144394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11944.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 70144394 is about 8375.2250119027. The cubic root of 70144394 is about 412.4117110096.

The spelling of 70144394 in words is "seventy million, one hundred forty-four thousand, three hundred ninety-four".