42991514 has 8 divisors (see below), whose sum is σ = 66711060. Its totient is φ = 20754496.

The previous prime is 42991499. The next prime is 42991523. The reversal of 42991514 is 41519924.

It can be written as a sum of positive squares in 2 ways, for example, as 38850289 + 4141225 = 6233^2 + 2035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370559 + ... + 370674.

Almost surely, 2^42991514 is an apocalyptic number.

42991514 is a deficient number, since it is larger than the sum of its proper divisors (23719546).

42991514 is a wasteful number, since it uses less digits than its factorization.

42991514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741264.

The product of its digits is 12960, while the sum is 35.

The square root of 42991514 is about 6556.7914409412. The cubic root of 42991514 is about 350.3167581380.

The spelling of 42991514 in words is "forty-two million, nine hundred ninety-one thousand, five hundred fourteen".