42097401 has 20 divisors (see below), whose sum is σ = 63355600. Its totient is φ = 27855576.

The previous prime is 42097397. The next prime is 42097403. The reversal of 42097401 is 10479024.

It is a happy number.

42097401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42097401 - 2² = 42097397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42097403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9390 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (3167780).

Almost surely, 2^42097401 is an apocalyptic number.

It is an amenable number.

42097401 is a deficient number, since it is larger than the sum of its proper divisors (21258199).

42097401 is a wasteful number, since it uses less digits than its factorization.

42097401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890 (or 3881 counting only the distinct ones).

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

The square root of 42097401 is about 6488.2509969945. The cubic root of 42097401 is about 347.8711621763.

The spelling of 42097401 in words is "forty-two million, ninety-seven thousand, four hundred one".