70361620 has 48 divisors (see below), whose sum is σ = 170795520. Its totient is φ = 23848704.

The previous prime is 70361611. The next prime is 70361633. The reversal of 70361620 is 2616307.

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, 9637 + ... + 15283.

It is an arithmetic number, because the mean of its divisors is an integer number (3558240).

Almost surely, 2^70361620 is an apocalyptic number.

70361620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70361620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85397760).

70361620 is an abundant number, since it is smaller than the sum of its proper divisors (100433900).

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

70361620 is a wasteful number, since it uses less digits than its factorization.

70361620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752 (or 5750 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 70361620 is about 8388.1833551729. The cubic root of 70361620 is about 412.8369967267.

Adding to 70361620 its reverse (2616307), we get a palindrome (72977927).

The spelling of 70361620 in words is "seventy million, three hundred sixty-one thousand, six hundred twenty".