42446450 has 24 divisors (see below), whose sum is σ = 83596212. Its totient is φ = 15979520.

The previous prime is 42446441. The next prime is 42446479. The reversal of 42446450 is 5464424.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 15062161 + 27384289 = 3881^2 + 5233^2 .

It is a super-2 number, since 2×42446450² = 3603402235205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24119 + ... + 25818.

Almost surely, 2^42446450 is an apocalyptic number.

42446450 is a deficient number, since it is larger than the sum of its proper divisors (41149762).

42446450 is a wasteful number, since it uses less digits than its factorization.

42446450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49966 (or 49961 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 42446450 is about 6515.0940131360. The cubic root of 42446450 is about 348.8299705699.

The spelling of 42446450 in words is "forty-two million, four hundred forty-six thousand, four hundred fifty".