42941810 has 16 divisors (see below), whose sum is σ = 77388696. Its totient is φ = 17155968.

The previous prime is 42941797. The next prime is 42941831. The reversal of 42941810 is 1814924.

It is a Cunningham number, because it is equal to 6553²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 41460721 + 1481089 = 6439^2 + 1217^2 .

It is a super-2 number, since 2×42941810² = 3687998092152200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8252 + ... + 12408.

Almost surely, 2^42941810 is an apocalyptic number.

42941810 is a deficient number, since it is larger than the sum of its proper divisors (34446886).

42941810 is a wasteful number, since it uses less digits than its factorization.

42941810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 42941810 is about 6553.0000763009. Note that the first 4 decimals coincide. The cubic root of 42941810 is about 350.1817015722.

The spelling of 42941810 in words is "forty-two million, nine hundred forty-one thousand, eight hundred ten".