70271630 has 64 divisors (see below), whose sum is σ = 150026688. Its totient is φ = 23362560.

The previous prime is 70271629. The next prime is 70271653. The reversal of 70271630 is 3617207.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 70271630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224354 + ... + 224666.

It is an arithmetic number, because the mean of its divisors is an integer number (2344167).

Almost surely, 2^70271630 is an apocalyptic number.

70271630 is an abundant number, since it is smaller than the sum of its proper divisors (79755058).

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

70271630 is a wasteful number, since it uses less digits than its factorization.

70271630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 70271630 is about 8382.8175454318. The cubic root of 70271630 is about 412.6609203802.

Adding to 70271630 its reverse (3617207), we get a palindrome (73888837).

The spelling of 70271630 in words is "seventy million, two hundred seventy-one thousand, six hundred thirty".