42617290 has 16 divisors (see below), whose sum is σ = 77021280. Its totient is φ = 16978000.

The previous prime is 42617251. The next prime is 42617291. The reversal of 42617290 is 9271624.

It is not an unprimeable number, because it can be changed into a prime (42617291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5980 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (4813830).

Almost surely, 2^42617290 is an apocalyptic number.

42617290 is a deficient number, since it is larger than the sum of its proper divisors (34403990).

42617290 is a wasteful number, since it uses less digits than its factorization.

42617290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17237.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 42617290 is about 6528.1919395802. The cubic root of 42617290 is about 349.2973385774.

The spelling of 42617290 in words is "forty-two million, six hundred seventeen thousand, two hundred ninety".