1097426880 has 336 divisors, whose sum is σ = 4273686144. Its totient is φ = 265835520.

The previous prime is 1097426849. The next prime is 1097426887. The reversal of 1097426880 is 886247901.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097426887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 854719 + ... + 856001.

It is an arithmetic number, because the mean of its divisors is an integer number (12719304).

Almost surely, 2^1097426880 is an apocalyptic number.

1097426880 is a gapful number since it is divisible by the number (10) 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 1097426880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2136843072).

1097426880 is an abundant number, since it is smaller than the sum of its proper divisors (3176259264).

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

1097426880 is a wasteful number, since it uses less digits than its factorization.

1097426880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1097426880 is about 33127.4339483154. The cubic root of 1097426880 is about 1031.4745838143.

The spelling of 1097426880 in words is "one billion, ninety-seven million, four hundred twenty-six thousand, eight hundred eighty".