42790433 has 4 divisors (see below), whose sum is σ = 48903360. Its totient is φ = 36677508.

The previous prime is 42790427. The next prime is 42790439. The reversal of 42790433 is 33409724.

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 (42790427) and next prime (42790439).

It is not a de Polignac number, because 42790433 - 2⁴ = 42790417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42790433.

It is not an unprimeable number, because it can be changed into a prime (42790439) 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, 3056453 + ... + 3056466.

It is an arithmetic number, because the mean of its divisors is an integer number (12225840).

Almost surely, 2^42790433 is an apocalyptic number.

It is an amenable number.

42790433 is a deficient number, since it is larger than the sum of its proper divisors (6112927).

42790433 is an equidigital number, since it uses as much as digits as its factorization.

42790433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6112926.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 42790433 is about 6541.4396733441. The cubic root of 42790433 is about 349.7697342552.

The spelling of 42790433 in words is "forty-two million, seven hundred ninety thousand, four hundred thirty-three".