1097722406 has 24 divisors (see below), whose sum is σ = 1818086592. Its totient is φ = 496702800.

The previous prime is 1097722391. The next prime is 1097722427. The reversal of 1097722406 is 6042277901.

It is a self number, because there is not a number n which added to its sum of digits gives 1097722406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43796 + ... + 64136.

It is an arithmetic number, because the mean of its divisors is an integer number (75753608).

Almost surely, 2^1097722406 is an apocalyptic number.

1097722406 is a deficient number, since it is larger than the sum of its proper divisors (720364186).

1097722406 is a wasteful number, since it uses less digits than its factorization.

1097722406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20588 (or 20577 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1097722406 is about 33131.8940901362. The cubic root of 1097722406 is about 1031.5671640749.

The spelling of 1097722406 in words is "one billion, ninety-seven million, seven hundred twenty-two thousand, four hundred six".