731993274 has 64 divisors (see below), whose sum is σ = 1691614080. Its totient is φ = 237350736.

The previous prime is 731993267. The next prime is 731993281. The reversal of 731993274 is 472399137.

731993274 is a `hidden beast` number, since 7 + 319 + 9 + 327 + 4 = 666.

731993274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (731993267) and next prime (731993281).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159577 + ... + 164099.

It is an arithmetic number, because the mean of its divisors is an integer number (26431470).

Almost surely, 2^731993274 is an apocalyptic number.

731993274 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 731993274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845807040).

731993274 is an abundant number, since it is smaller than the sum of its proper divisors (959620806).

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

731993274 is an equidigital number, since it uses as much as digits as its factorization.

731993274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583 (or 4565 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 731993274 is about 27055.3742165951. The cubic root of 731993274 is about 901.2301179117.

The spelling of 731993274 in words is "seven hundred thirty-one million, nine hundred ninety-three thousand, two hundred seventy-four".