42980073 has 4 divisors (see below), whose sum is σ = 57306768. Its totient is φ = 28653380.

The previous prime is 42980057. The next prime is 42980089. The reversal of 42980073 is 37008924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42980057) and next prime (42980089).

It is a cyclic number.

It is not a de Polignac number, because 42980073 - 2⁴ = 42980057 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (42980023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7163343 + ... + 7163348.

It is an arithmetic number, because the mean of its divisors is an integer number (14326692).

Almost surely, 2^42980073 is an apocalyptic number.

It is an amenable number.

42980073 is a deficient number, since it is larger than the sum of its proper divisors (14326695).

42980073 is a wasteful number, since it uses less digits than its factorization.

42980073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14326694.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 42980073 is about 6555.9189287239. The cubic root of 42980073 is about 350.2856796821.

Adding to 42980073 its reverse (37008924), we get a palindrome (79988997).

The spelling of 42980073 in words is "forty-two million, nine hundred eighty thousand, seventy-three".