70033481 has 16 divisors (see below), whose sum is σ = 81312000. Its totient is φ = 59082048.

The previous prime is 70033471. The next prime is 70033519. The reversal of 70033481 is 18433007.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70033481 is a prime.

It is a super-2 number, since 2×70033481² = 9809376921954722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70033481.

It is not an unprimeable number, because it can be changed into a prime (70033451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200495 + ... + 200843.

It is an arithmetic number, because the mean of its divisors is an integer number (5082000).

Almost surely, 2^70033481 is an apocalyptic number.

It is an amenable number.

70033481 is a deficient number, since it is larger than the sum of its proper divisors (11278519).

70033481 is a wasteful number, since it uses less digits than its factorization.

70033481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70033481 is about 8368.6008985971. The cubic root of 70033481 is about 412.1942265330.

Adding to 70033481 its reverse (18433007), we get a palindrome (88466488).

The spelling of 70033481 in words is "seventy million, thirty-three thousand, four hundred eighty-one".