42136450 has 12 divisors (see below), whose sum is σ = 78373890. Its totient is φ = 16854560.

The previous prime is 42136447. The next prime is 42136513. The reversal of 42136450 is 5463124.

It can be written as a sum of positive squares in 3 ways, for example, as 16966161 + 25170289 = 4119^2 + 5017^2 .

It is a super-3 number, since 3×42136450³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421315 + ... + 421414.

Almost surely, 2^42136450 is an apocalyptic number.

42136450 is a deficient number, since it is larger than the sum of its proper divisors (36237440).

42136450 is a wasteful number, since it uses less digits than its factorization.

42136450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842741 (or 842736 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42136450 is about 6491.2595079846. The cubic root of 42136450 is about 347.9786891869.

Adding to 42136450 its reverse (5463124), we get a palindrome (47599574).

The spelling of 42136450 in words is "forty-two million, one hundred thirty-six thousand, four hundred fifty".