42793988 has 6 divisors (see below), whose sum is σ = 74889486. Its totient is φ = 21396992.

The previous prime is 42793973. The next prime is 42793991. The reversal of 42793988 is 88939724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25421764 + 17372224 = 5042^2 + 4168^2 .

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 as a sum of consecutive naturals, namely, 5349245 + ... + 5349252.

It is an arithmetic number, because the mean of its divisors is an integer number (12481581).

Almost surely, 2^42793988 is an apocalyptic number.

It is an amenable number.

42793988 is a deficient number, since it is larger than the sum of its proper divisors (32095498).

42793988 is a wasteful number, since it uses less digits than its factorization.

42793988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10698501 (or 10698499 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 42793988 is about 6541.7113968747. The cubic root of 42793988 is about 349.7794201973.

The spelling of 42793988 in words is "forty-two million, seven hundred ninety-three thousand, nine hundred eighty-eight".