70233381 has 6 divisors (see below), whose sum is σ = 101448230. Its totient is φ = 46822248.

The previous prime is 70233379. The next prime is 70233403. The reversal of 70233381 is 18333207.

It can be written as a sum of positive squares in only one way, i.e., 64545156 + 5688225 = 8034^2 + 2385^2 .

It is not a de Polignac number, because 70233381 - 2¹ = 70233379 is a prime.

It is a super-2 number, since 2×70233381² = 9865455613382322, 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 (70233301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3901846 + ... + 3901863.

Almost surely, 2^70233381 is an apocalyptic number.

It is an amenable number.

70233381 is a deficient number, since it is larger than the sum of its proper divisors (31214849).

70233381 is a wasteful number, since it uses less digits than its factorization.

70233381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803715 (or 7803712 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70233381 is about 8380.5358420569. The cubic root of 70233381 is about 412.5860360485.

Adding to 70233381 its reverse (18333207), we get a palindrome (88566588).

It can be divided in two parts, 7023 and 3381, that added together give a square (10404 = 102²).

The spelling of 70233381 in words is "seventy million, two hundred thirty-three thousand, three hundred eighty-one".