42012297 has 8 divisors (see below), whose sum is σ = 62240480. Its totient is φ = 28008180.

The previous prime is 42012293. The next prime is 42012301. The reversal of 42012297 is 79221024.

It is an interprime number because it is at equal distance from previous prime (42012293) and next prime (42012301).

It is not a de Polignac number, because 42012297 - 2² = 42012293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1556011 = 42012297 / (4 + 2 + 0 + 1 + 2 + 2 + 9 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42012297.

It is not an unprimeable number, because it can be changed into a prime (42012293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777979 + ... + 778032.

It is an arithmetic number, because the mean of its divisors is an integer number (7780060).

Almost surely, 2^42012297 is an apocalyptic number.

It is an amenable number.

42012297 is a deficient number, since it is larger than the sum of its proper divisors (20228183).

42012297 is a wasteful number, since it uses less digits than its factorization.

42012297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556020 (or 1556014 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42012297 is about 6481.6893631213. The cubic root of 42012297 is about 347.6365855431.

The spelling of 42012297 in words is "forty-two million, twelve thousand, two hundred ninety-seven".