997302460 has 192 divisors, whose sum is σ = 2737566720. Its totient is φ = 296110080.

The previous prime is 997302413. The next prime is 997302461. The reversal of 997302460 is 64203799.

It is a super-2 number, since 2×997302460² = 1989224393444103200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997302461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6118339 + ... + 6118501.

It is an arithmetic number, because the mean of its divisors is an integer number (14258160).

Almost surely, 2^997302460 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 997302460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368783360).

997302460 is an abundant number, since it is smaller than the sum of its proper divisors (1740264260).

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

997302460 is a wasteful number, since it uses less digits than its factorization.

997302460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 997302460 is about 31580.0959466560. The cubic root of 997302460 is about 999.1000102615.

The spelling of 997302460 in words is "nine hundred ninety-seven million, three hundred two thousand, four hundred sixty".