42290811 has 12 divisors (see below), whose sum is σ = 61345440. Its totient is φ = 28074480.

The previous prime is 42290797. The next prime is 42290837. The reversal of 42290811 is 11809224.

It is not a de Polignac number, because 42290811 - 2⁵ = 42290779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42290891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7680 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (5112120).

Almost surely, 2^42290811 is an apocalyptic number.

42290811 is a deficient number, since it is larger than the sum of its proper divisors (19054629).

42290811 is a wasteful number, since it uses less digits than its factorization.

42290811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19906 (or 19903 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 42290811 is about 6503.1385499619. The cubic root of 42290811 is about 348.4030951343.

The spelling of 42290811 in words is "forty-two million, two hundred ninety thousand, eight hundred eleven".