42891514 has 4 divisors (see below), whose sum is σ = 64337274. Its totient is φ = 21445756.

The previous prime is 42891509. The next prime is 42891517. The reversal of 42891514 is 41519824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32296489 + 10595025 = 5683^2 + 3255^2 .

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 42891514.

It is not an unprimeable number, because it can be changed into a prime (42891517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10722877 + ... + 10722880.

Almost surely, 2^42891514 is an apocalyptic number.

42891514 is a deficient number, since it is larger than the sum of its proper divisors (21445760).

42891514 is a wasteful number, since it uses less digits than its factorization.

42891514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21445759.

The product of its digits is 11520, while the sum is 34.

The square root of 42891514 is about 6549.1613203524. The cubic root of 42891514 is about 350.0449302864.

The spelling of 42891514 in words is "forty-two million, eight hundred ninety-one thousand, five hundred fourteen".