42200397 has 6 divisors (see below), whose sum is σ = 60956142. Its totient is φ = 28133592.

The previous prime is 42200381. The next prime is 42200429. The reversal of 42200397 is 79300224.

It can be written as a sum of positive squares in only one way, i.e., 38303721 + 3896676 = 6189^2 + 1974^2 .

It is not a de Polignac number, because 42200397 - 2⁴ = 42200381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42200397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42200317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2344458 + ... + 2344475.

It is an arithmetic number, because the mean of its divisors is an integer number (10159357).

Almost surely, 2^42200397 is an apocalyptic number.

It is an amenable number.

42200397 is a deficient number, since it is larger than the sum of its proper divisors (18755745).

42200397 is a wasteful number, since it uses less digits than its factorization.

42200397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688939 (or 4688936 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 42200397 is about 6496.1832640405. The cubic root of 42200397 is about 348.1546330229.

The spelling of 42200397 in words is "forty-two million, two hundred thousand, three hundred ninety-seven".