42473254 has 4 divisors (see below), whose sum is σ = 63709884. Its totient is φ = 21236626.

The previous prime is 42473251. The next prime is 42473261. The reversal of 42473254 is 45237424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42473251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10618312 + ... + 10618315.

It is an arithmetic number, because the mean of its divisors is an integer number (15927471).

Almost surely, 2^42473254 is an apocalyptic number.

42473254 is a deficient number, since it is larger than the sum of its proper divisors (21236630).

42473254 is a wasteful number, since it uses less digits than its factorization.

42473254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21236629.

The product of its digits is 26880, while the sum is 31.

The square root of 42473254 is about 6517.1507578082. The cubic root of 42473254 is about 348.9033812721.

The spelling of 42473254 in words is "forty-two million, four hundred seventy-three thousand, two hundred fifty-four".