42691010 has 8 divisors (see below), whose sum is σ = 76843836. Its totient is φ = 17076400.

The previous prime is 42691003. The next prime is 42691027. The reversal of 42691010 is 1019624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 1692601 = 6403^2 + 1301^2 .

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, 2134541 + ... + 2134560.

Almost surely, 2^42691010 is an apocalyptic number.

42691010 is a deficient number, since it is larger than the sum of its proper divisors (34152826).

42691010 is a wasteful number, since it uses less digits than its factorization.

42691010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4269108.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 42691010 is about 6533.8357799994. The cubic root of 42691010 is about 349.4986290737.

The spelling of 42691010 in words is "forty-two million, six hundred ninety-one thousand, ten".