42673408 has 18 divisors (see below), whose sum is σ = 85180634. Its totient is φ = 21336576.

The previous prime is 42673403. The next prime is 42673429. The reversal of 42673408 is 80437624.

It can be written as a sum of positive squares in only one way, i.e., 29942784 + 12730624 = 5472^2 + 3568^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42673403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83091 + ... + 83602.

Almost surely, 2^42673408 is an apocalyptic number.

It is an amenable number.

42673408 is a deficient number, since it is larger than the sum of its proper divisors (42507226).

42673408 is an equidigital number, since it uses as much as digits as its factorization.

42673408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166709 (or 166695 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 42673408 is about 6532.4886528795. The cubic root of 42673408 is about 349.4505883538.

The spelling of 42673408 in words is "forty-two million, six hundred seventy-three thousand, four hundred eight".