42254397 has 6 divisors (see below), whose sum is σ = 61034142. Its totient is φ = 28169592.

The previous prime is 42254389. The next prime is 42254417. The reversal of 42254397 is 79345224.

42254397 is a `hidden beast` number, since 4 + 22 + 543 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41100921 + 1153476 = 6411^2 + 1074^2 .

It is not a de Polignac number, because 42254397 - 2³ = 42254389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42254497) 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, 2347458 + ... + 2347475.

It is an arithmetic number, because the mean of its divisors is an integer number (10172357).

Almost surely, 2^42254397 is an apocalyptic number.

It is an amenable number.

42254397 is a deficient number, since it is larger than the sum of its proper divisors (18779745).

42254397 is a wasteful number, since it uses less digits than its factorization.

42254397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694939 (or 4694936 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 42254397 is about 6500.3382219697. The cubic root of 42254397 is about 348.3030703062.

The spelling of 42254397 in words is "forty-two million, two hundred fifty-four thousand, three hundred ninety-seven".