42074073 has 10 divisors (see below), whose sum is σ = 62851514. Its totient is φ = 28049328.

The previous prime is 42074063. The next prime is 42074083. The reversal of 42074073 is 37047024.

It is an interprime number because it is at equal distance from previous prime (42074063) and next prime (42074083).

It can be written as a sum of positive squares in only one way, i.e., 29942784 + 12131289 = 5472^2 + 3483^2 .

It is not a de Polignac number, because 42074073 - 2⁶ = 42074009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42074003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 259636 + ... + 259797.

Almost surely, 2^42074073 is an apocalyptic number.

It is an amenable number.

42074073 is a deficient number, since it is larger than the sum of its proper divisors (20777441).

42074073 is an equidigital number, since it uses as much as digits as its factorization.

42074073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519445 (or 519436 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 42074073 is about 6486.4530369070. The cubic root of 42074073 is about 347.8068934588.

The spelling of 42074073 in words is "forty-two million, seventy-four thousand, seventy-three".