42849770 has 8 divisors (see below), whose sum is σ = 77129604. Its totient is φ = 17139904.

The previous prime is 42849767. The next prime is 42849787. The reversal of 42849770 is 7794824.

It can be written as a sum of positive squares in 2 ways, for example, as 41229241 + 1620529 = 6421^2 + 1273^2 .

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

It is a super-2 number, since 2×42849770² = 3672205578105800, which contains 22 as substring.

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, 2142479 + ... + 2142498.

Almost surely, 2^42849770 is an apocalyptic number.

42849770 is a deficient number, since it is larger than the sum of its proper divisors (34279834).

42849770 is a wasteful number, since it uses less digits than its factorization.

42849770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284984.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 42849770 is about 6545.9735715935. The cubic root of 42849770 is about 349.9313334680.

The spelling of 42849770 in words is "forty-two million, eight hundred forty-nine thousand, seven hundred seventy".