70045381 has 8 divisors (see below), whose sum is σ = 84265280. Its totient is φ = 56878848.

The previous prime is 70045379. The next prime is 70045433. The reversal of 70045381 is 18354007.

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

It is a cyclic number.

It is not a de Polignac number, because 70045381 - 2¹ = 70045379 is a prime.

It is a super-2 number, since 2×70045381² = 9812710798870322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70045301) 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 7 ways as a sum of consecutive naturals, for example, 263196 + ... + 263461.

It is an arithmetic number, because the mean of its divisors is an integer number (10533160).

Almost surely, 2^70045381 is an apocalyptic number.

It is an amenable number.

70045381 is a deficient number, since it is larger than the sum of its proper divisors (14219899).

70045381 is a wasteful number, since it uses less digits than its factorization.

70045381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526683.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 70045381 is about 8369.3118594064. The cubic root of 70045381 is about 412.2175717170.

Adding to 70045381 its reverse (18354007), we get a palindrome (88399388).

The spelling of 70045381 in words is "seventy million, forty-five thousand, three hundred eighty-one".