70229280 has 192 divisors, whose sum is σ = 247339008. Its totient is φ = 16604160.

The previous prime is 70229279. The next prime is 70229287. The reversal of 70229280 is 8292207.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (70229287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248019 + ... + 248301.

It is an arithmetic number, because the mean of its divisors is an integer number (1288224).

Almost surely, 2^70229280 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 70229280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123669504).

70229280 is an abundant number, since it is smaller than the sum of its proper divisors (177109728).

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

70229280 is a wasteful number, since it uses less digits than its factorization.

70229280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 70229280 is about 8380.2911643928. The cubic root of 70229280 is about 412.5780054499.

The spelling of 70229280 in words is "seventy million, two hundred twenty-nine thousand, two hundred eighty".