913422720 has 512 divisors, whose sum is σ = 3623040000. Its totient is φ = 195084288.

The previous prime is 913422659. The next prime is 913422721. The reversal of 913422720 is 27224319.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913422721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12512604 + ... + 12512676.

It is an arithmetic number, because the mean of its divisors is an integer number (7076250).

Almost surely, 2^913422720 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 913422720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1811520000).

913422720 is an abundant number, since it is smaller than the sum of its proper divisors (2709617280).

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

913422720 is a wasteful number, since it uses less digits than its factorization.

913422720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 913422720 is about 30222.8840450411. The cubic root of 913422720 is about 970.2655311604.

The spelling of 913422720 in words is "nine hundred thirteen million, four hundred twenty-two thousand, seven hundred twenty".