42179450 has 12 divisors (see below), whose sum is σ = 78453870. Its totient is φ = 16871760.

The previous prime is 42179441. The next prime is 42179453. The reversal of 42179450 is 5497124.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 27426169 + 14753281 = 5237^2 + 3841^2 .

It is not an unprimeable number, because it can be changed into a prime (42179453) 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, 421745 + ... + 421844.

Almost surely, 2^42179450 is an apocalyptic number.

42179450 is a deficient number, since it is larger than the sum of its proper divisors (36274420).

42179450 is a wasteful number, since it uses less digits than its factorization.

42179450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843601 (or 843596 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 42179450 is about 6494.5708095301. The cubic root of 42179450 is about 348.0970190146.

The spelling of 42179450 in words is "forty-two million, one hundred seventy-nine thousand, four hundred fifty".