70428000 has 96 divisors (see below), whose sum is σ = 230761440. Its totient is φ = 18777600.

The previous prime is 70427999. The next prime is 70428011. The reversal of 70428000 is 82407.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9066 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (2403765).

Almost surely, 2^70428000 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 70428000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115380720).

70428000 is an abundant number, since it is smaller than the sum of its proper divisors (160333440).

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

70428000 is a wasteful number, since it uses less digits than its factorization.

70428000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897 (or 5879 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 70428000 is about 8392.1391790175. The cubic root of 70428000 is about 412.9667810540.

The spelling of 70428000 in words is "seventy million, four hundred twenty-eight thousand".