754222720 has 64 divisors (see below), whose sum is σ = 1865284200. Its totient is φ = 291278848.

The previous prime is 754222687. The next prime is 754222747. The reversal of 754222720 is 27222457.

It can be written as a sum of positive squares in 4 ways, for example, as 351337536 + 402885184 = 18744^2 + 20072^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×754222720² = 1137703822728396800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759 + ... + 38878.

Almost surely, 2^754222720 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 754222720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932642100).

754222720 is an abundant number, since it is smaller than the sum of its proper divisors (1111061480).

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

754222720 is a wasteful number, since it uses less digits than its factorization.

754222720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40685 (or 40673 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 754222720 is about 27463.1156280565. The cubic root of 754222720 is about 910.2622598768.

The spelling of 754222720 in words is "seven hundred fifty-four million, two hundred twenty-two thousand, seven hundred twenty".