70030400 has 168 divisors, whose sum is σ = 197290944. Its totient is φ = 24217600.

The previous prime is 70030399. The next prime is 70030417. The reversal of 70030400 is 403007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404714 + ... + 404886.

Almost surely, 2^70030400 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 70030400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98645472).

70030400 is an abundant number, since it is smaller than the sum of its proper divisors (127260544).

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

70030400 is a wasteful number, since it uses less digits than its factorization.

70030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 70030400 is about 8368.4168156229. The cubic root of 70030400 is about 412.1881818574.

Adding to 70030400 its reverse (403007), we get a palindrome (70433407).

The spelling of 70030400 in words is "seventy million, thirty thousand, four hundred".