70021382 has 8 divisors (see below), whose sum is σ = 105996000. Its totient is φ = 34689384.

The previous prime is 70021363. The next prime is 70021397. The reversal of 70021382 is 28312007.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160382 + ... + 160817.

It is an arithmetic number, because the mean of its divisors is an integer number (13249500).

Almost surely, 2^70021382 is an apocalyptic number.

70021382 is a deficient number, since it is larger than the sum of its proper divisors (35974618).

70021382 is a wasteful number, since it uses less digits than its factorization.

70021382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321310.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 70021382 is about 8367.8779866822. The cubic root of 70021382 is about 412.1704882434.

Adding to 70021382 its reverse (28312007), we get a palindrome (98333389).

The spelling of 70021382 in words is "seventy million, twenty-one thousand, three hundred eighty-two".