42111450 has 36 divisors (see below), whose sum is σ = 113140638. Its totient is φ = 11229600.

The previous prime is 42111409. The next prime is 42111473. The reversal of 42111450 is 5411124.

42111450 is a `hidden beast` number, since 4 + 211 + 1 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 28869129 + 13242321 = 5373^2 + 3639^2 .

It is a super-2 number, since 2×42111450² = 3546748442205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 17 ways as a sum of consecutive naturals, for example, 46341 + ... + 47240.

Almost surely, 2^42111450 is an apocalyptic number.

42111450 is an abundant number, since it is smaller than the sum of its proper divisors (71029188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42111450 is a wasteful number, since it uses less digits than its factorization.

42111450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93599 (or 93591 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 42111450 is about 6489.3335559208. Note that the first 3 decimals coincide. The cubic root of 42111450 is about 347.9098557637.

Adding to 42111450 its reverse (5411124), we get a palindrome (47522574).

The spelling of 42111450 in words is "forty-two million, one hundred eleven thousand, four hundred fifty".