1997406096 has 40 divisors (see below), whose sum is σ = 5897104704. Its totient is φ = 570687360.

The previous prime is 1997406067. The next prime is 1997406137. The reversal of 1997406096 is 6906047991.

It is a super-2 number, since 2×1997406096² = 7979262224675922432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2971995 + ... + 2972666.

Almost surely, 2^1997406096 is an apocalyptic number.

1997406096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1997406096 is an abundant number, since it is smaller than the sum of its proper divisors (3899698608).

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

1997406096 is a wasteful number, since it uses less digits than its factorization.

1997406096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944679 (or 5944673 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 1997406096 is about 44692.3494123994. The cubic root of 1997406096 is about 1259.3761285395.

The spelling of 1997406096 in words is "one billion, nine hundred ninety-seven million, four hundred six thousand, ninety-six".