997342442 has 8 divisors (see below), whose sum is σ = 1514038176. Its totient is φ = 492663052.

The previous prime is 997342441. The next prime is 997342469. The reversal of 997342442 is 244243799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×997342442² = 1989383893229046728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 997342393 and 997342402.

It is not an unprimeable number, because it can be changed into a prime (997342441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3003878 + ... + 3004209.

It is an arithmetic number, because the mean of its divisors is an integer number (189254772).

Almost surely, 2^997342442 is an apocalyptic number.

997342442 is a deficient number, since it is larger than the sum of its proper divisors (516695734).

997342442 is a wasteful number, since it uses less digits than its factorization.

997342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008172.

The product of its digits is 435456, while the sum is 44.

The square root of 997342442 is about 31580.7289656208. The cubic root of 997342442 is about 999.1133614377.

The spelling of 997342442 in words is "nine hundred ninety-seven million, three hundred forty-two thousand, four hundred forty-two".