1097726344 has 64 divisors (see below), whose sum is σ = 2423715840. Its totient is φ = 459509760.

The previous prime is 1097726341. The next prime is 1097726351. The reversal of 1097726344 is 4436277901.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1097726344.

It is not an unprimeable number, because it can be changed into a prime (1097726341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659257 + ... + 660919.

It is an arithmetic number, because the mean of its divisors is an integer number (37870560).

Almost surely, 2^1097726344 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 1097726344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211857920).

1097726344 is an abundant number, since it is smaller than the sum of its proper divisors (1325989496).

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

1097726344 is a wasteful number, since it uses less digits than its factorization.

1097726344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 1097726344 is about 33131.9535192237. The cubic root of 1097726344 is about 1031.5683976310.

The spelling of 1097726344 in words is "one billion, ninety-seven million, seven hundred twenty-six thousand, three hundred forty-four".