42798744 has 24 divisors (see below), whose sum is σ = 115913460. Its totient is φ = 14266224.

The previous prime is 42798737. The next prime is 42798781. The reversal of 42798744 is 44789724.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 42798744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297142 + ... + 297285.

Almost surely, 2^42798744 is an apocalyptic number.

It is an amenable number.

42798744 is an abundant number, since it is smaller than the sum of its proper divisors (73114716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42798744 is a wasteful number, since it uses less digits than its factorization.

42798744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594439 (or 594432 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 42798744 is about 6542.0749002132. The cubic root of 42798744 is about 349.7923775415.

The spelling of 42798744 in words is "forty-two million, seven hundred ninety-eight thousand, seven hundred forty-four".