70421952 has 112 divisors (see below), whose sum is σ = 200143872. Its totient is φ = 21795840.

The previous prime is 70421951. The next prime is 70421963. The reversal of 70421952 is 25912407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70421951) 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, 163177 + ... + 163607.

Almost surely, 2^70421952 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 70421952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100071936).

70421952 is an abundant number, since it is smaller than the sum of its proper divisors (129721920).

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

70421952 is a wasteful number, since it uses less digits than its factorization.

70421952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 70421952 is about 8391.7788340733. The cubic root of 70421952 is about 412.9549595503.

The spelling of 70421952 in words is "seventy million, four hundred twenty-one thousand, nine hundred fifty-two".