70381380 has 48 divisors (see below), whose sum is σ = 205640064. Its totient is φ = 17952000.

The previous prime is 70381361. The next prime is 70381397. The reversal of 70381380 is 8318307.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24121 + ... + 26880.

It is an arithmetic number, because the mean of its divisors is an integer number (4284168).

Almost surely, 2^70381380 is an apocalyptic number.

It is an amenable number.

70381380 is an abundant number, since it is smaller than the sum of its proper divisors (135258684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70381380 is a wasteful number, since it uses less digits than its factorization.

70381380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51036 (or 51034 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 70381380 is about 8389.3611198946. The cubic root of 70381380 is about 412.8756394580.

Adding to 70381380 its reverse (8318307), we get a palindrome (78699687).

The spelling of 70381380 in words is "seventy million, three hundred eighty-one thousand, three hundred eighty".