70672320 has 168 divisors, whose sum is σ = 248204736. Its totient is φ = 18450432.

The previous prime is 70672289. The next prime is 70672351. The reversal of 70672320 is 2327607.

It is an interprime number because it is at equal distance from previous prime (70672289) and next prime (70672351).

It is a super-3 number, since 3×70672320³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 152409 + ... + 152871.

Almost surely, 2^70672320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124102368).

70672320 is an abundant number, since it is smaller than the sum of its proper divisors (177532416).

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

70672320 is a wasteful number, since it uses less digits than its factorization.

70672320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 70672320 is about 8406.6830557599. The cubic root of 70672320 is about 413.4437674624.

Adding to 70672320 its reverse (2327607), we get a palindrome (72999927).

The spelling of 70672320 in words is "seventy million, six hundred seventy-two thousand, three hundred twenty".