70878288 has 80 divisors (see below), whose sum is σ = 199390016. Its totient is φ = 21565440.

The previous prime is 70878281. The next prime is 70878323. The reversal of 70878288 is 88287807.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59943 + ... + 61113.

Almost surely, 2^70878288 is an apocalyptic number.

70878288 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70878288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99695008).

70878288 is an abundant number, since it is smaller than the sum of its proper divisors (128511728).

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

70878288 is a wasteful number, since it uses less digits than its factorization.

70878288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 1286 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The square root of 70878288 is about 8418.9243968574. The cubic root of 70878288 is about 413.8450258945.

The spelling of 70878288 in words is "seventy million, eight hundred seventy-eight thousand, two hundred eighty-eight".