70621200 has 240 divisors, whose sum is σ = 271232640. Its totient is φ = 17349120.

The previous prime is 70621189. The next prime is 70621211. The reversal of 70621200 is 212607.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70621189) and next prime (70621211).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140149 + ... + 140651.

It is an arithmetic number, because the mean of its divisors is an integer number (1130136).

Almost surely, 2^70621200 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 70621200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135616320).

70621200 is an abundant number, since it is smaller than the sum of its proper divisors (200611440).

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

70621200 is a wasteful number, since it uses less digits than its factorization.

70621200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70621200 is about 8403.6420675800. The cubic root of 70621200 is about 413.3440568382.

Adding to 70621200 its reverse (212607), we get a palindrome (70833807).

The spelling of 70621200 in words is "seventy million, six hundred twenty-one thousand, two hundred".