70288452 has 72 divisors (see below), whose sum is σ = 197376480. Its totient is φ = 21621600.

The previous prime is 70288447. The next prime is 70288459. The reversal of 70288452 is 25488207.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70288459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16327 + ... + 20177.

It is an arithmetic number, because the mean of its divisors is an integer number (2741340).

Almost surely, 2^70288452 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 70288452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98688240).

70288452 is an abundant number, since it is smaller than the sum of its proper divisors (127088028).

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

70288452 is a wasteful number, since it uses less digits than its factorization.

70288452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 70288452 is about 8383.8208473225. The cubic root of 70288452 is about 412.6938460817.

The spelling of 70288452 in words is "seventy million, two hundred eighty-eight thousand, four hundred fifty-two".