70281420 has 48 divisors (see below), whose sum is σ = 214679808. Its totient is φ = 17037760.

The previous prime is 70281391. The next prime is 70281439. The reversal of 70281420 is 2418207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52584 + ... + 53903.

It is an arithmetic number, because the mean of its divisors is an integer number (4472496).

Almost surely, 2^70281420 is an apocalyptic number.

It is an amenable number.

70281420 is an abundant number, since it is smaller than the sum of its proper divisors (144398388).

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

70281420 is a wasteful number, since it uses less digits than its factorization.

70281420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106510 (or 106508 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 70281420 is about 8383.4014576424. The cubic root of 70281420 is about 412.6800829868.

Adding to 70281420 its reverse (2418207), we get a palindrome (72699627).

It can be divided in two parts, 7028 and 1420, that added together give a palindrome (8448).

The spelling of 70281420 in words is "seventy million, two hundred eighty-one thousand, four hundred twenty".