1097931420 has 36 divisors (see below), whose sum is σ = 3330392520. Its totient is φ = 292781664.

The previous prime is 1097931407. The next prime is 1097931449. The reversal of 1097931420 is 241397901.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3049630 + ... + 3049989.

Almost surely, 2^1097931420 is an apocalyptic number.

1097931420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097931420 is an abundant number, since it is smaller than the sum of its proper divisors (2232461100).

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

1097931420 is a wasteful number, since it uses less digits than its factorization.

1097931420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6099634 (or 6099629 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1097931420 is about 33135.0482118255. The cubic root of 1097931420 is about 1031.6326324467.

The spelling of 1097931420 in words is "one billion, ninety-seven million, nine hundred thirty-one thousand, four hundred twenty".