42698984 has 8 divisors (see below), whose sum is σ = 80060610. Its totient is φ = 21349488.

The previous prime is 42698969. The next prime is 42698987. The reversal of 42698984 is 48989624.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26522500 + 16176484 = 5150^2 + 4022^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42698987) by changing a digit.

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, 2668679 + ... + 2668694.

Almost surely, 2^42698984 is an apocalyptic number.

It is an amenable number.

42698984 is a deficient number, since it is larger than the sum of its proper divisors (37361626).

42698984 is a wasteful number, since it uses less digits than its factorization.

42698984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337379 (or 5337375 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 42698984 is about 6534.4459596817. The cubic root of 42698984 is about 349.5203879762.

The spelling of 42698984 in words is "forty-two million, six hundred ninety-eight thousand, nine hundred eighty-four".