70642260 has 192 divisors, whose sum is σ = 245548800. Its totient is φ = 16740864.

The previous prime is 70642217. The next prime is 70642267. The reversal of 70642260 is 6224607.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70642267) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 203407 + ... + 203753.

It is an arithmetic number, because the mean of its divisors is an integer number (1278900).

Almost surely, 2^70642260 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 70642260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122774400).

70642260 is an abundant number, since it is smaller than the sum of its proper divisors (174906540).

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

70642260 is a wasteful number, since it uses less digits than its factorization.

70642260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 70642260 is about 8404.8950023186. The cubic root of 70642260 is about 413.3851406330.

Adding to 70642260 its reverse (6224607), we get a palindrome (76866867).

The spelling of 70642260 in words is "seventy million, six hundred forty-two thousand, two hundred sixty".