42270934 has 24 divisors (see below), whose sum is σ = 67592448. Its totient is φ = 19822320.

The previous prime is 42270919. The next prime is 42270937. The reversal of 42270934 is 43907224.

42270934 = 42² + 43² + ... + 502².

It is a super-2 number, since 2×42270934² = 3573663722464712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42270896 and 42270905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42270937) 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, 91464 + ... + 91924.

It is an arithmetic number, because the mean of its divisors is an integer number (2816352).

Almost surely, 2^42270934 is an apocalyptic number.

42270934 is a deficient number, since it is larger than the sum of its proper divisors (25321514).

42270934 is a wasteful number, since it uses less digits than its factorization.

42270934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 42270934 is about 6501.6101082732. The cubic root of 42270934 is about 348.3485025534.

The spelling of 42270934 in words is "forty-two million, two hundred seventy thousand, nine hundred thirty-four".