70213400 has 96 divisors (see below), whose sum is σ = 175368240. Its totient is φ = 26050560.

The previous prime is 70213397. The next prime is 70213433. The reversal of 70213400 is 431207.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 363704 + ... + 363896.

Almost surely, 2^70213400 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 70213400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87684120).

70213400 is an abundant number, since it is smaller than the sum of its proper divisors (105154840).

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

70213400 is a wasteful number, since it uses less digits than its factorization.

70213400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 70213400 is about 8379.3436497139. The cubic root of 70213400 is about 412.5469062056.

Adding to 70213400 its reverse (431207), we get a palindrome (70644607).

The spelling of 70213400 in words is "seventy million, two hundred thirteen thousand, four hundred".