42997552 has 60 divisors (see below), whose sum is σ = 92816976. Its totient is φ = 19180800.

The previous prime is 42997547. The next prime is 42997571. The reversal of 42997552 is 25579924.

It is a junction number, because it is equal to n+sod(n) for n = 42997499 and 42997508.

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, 284677 + ... + 284827.

Almost surely, 2^42997552 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 42997552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46408488).

42997552 is an abundant number, since it is smaller than the sum of its proper divisors (49819424).

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

42997552 is a wasteful number, since it uses less digits than its factorization.

42997552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 203 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 42997552 is about 6557.2518633952. The cubic root of 42997552 is about 350.3331576036. Note that the first 3 decimals are identical.

The spelling of 42997552 in words is "forty-two million, nine hundred ninety-seven thousand, five hundred fifty-two".