42674537 has 2 divisors, whose sum is σ = 42674538. Its totient is φ = 42674536.

The previous prime is 42674531. The next prime is 42674581. The reversal of 42674537 is 73547624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30591961 + 12082576 = 5531^2 + 3476^2 .

It is a cyclic number.

It is not a de Polignac number, because 42674537 - 2⁶ = 42674473 is a prime.

It is a super-2 number, since 2×42674537² = 3642232216328738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42674537.

It is not a weakly prime, because it can be changed into another prime (42674531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21337268 + 21337269.

It is an arithmetic number, because the mean of its divisors is an integer number (21337269).

Almost surely, 2^42674537 is an apocalyptic number.

It is an amenable number.

42674537 is a deficient number, since it is larger than the sum of its proper divisors (1).

42674537 is an equidigital number, since it uses as much as digits as its factorization.

42674537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 38.

The square root of 42674537 is about 6532.5750665415. The cubic root of 42674537 is about 349.4536701031.

The spelling of 42674537 in words is "forty-two million, six hundred seventy-four thousand, five hundred thirty-seven".