42149416 has 16 divisors (see below), whose sum is σ = 80522100. Its totient is φ = 20676864.

The previous prime is 42149413. The next prime is 42149431. The reversal of 42149416 is 61494124.

It can be written as a sum of positive squares in 2 ways, for example, as 40576900 + 1572516 = 6370^2 + 1254^2 .

It is not an unprimeable number, because it can be changed into a prime (42149411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49281 + ... + 50128.

Almost surely, 2^42149416 is an apocalyptic number.

It is an amenable number.

42149416 is a deficient number, since it is larger than the sum of its proper divisors (38372684).

42149416 is a wasteful number, since it uses less digits than its factorization.

42149416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99468 (or 99464 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 42149416 is about 6492.2581587611. The cubic root of 42149416 is about 348.0143782318.

The spelling of 42149416 in words is "forty-two million, one hundred forty-nine thousand, four hundred sixteen".