42504464 has 10 divisors (see below), whose sum is σ = 82352430. Its totient is φ = 21252224.

The previous prime is 42504433. The next prime is 42504479. The reversal of 42504464 is 46440524.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 4804864 = 6140^2 + 2192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328249 + ... + 1328280.

It is an arithmetic number, because the mean of its divisors is an integer number (8235243).

Almost surely, 2^42504464 is an apocalyptic number.

It is an amenable number.

42504464 is a deficient number, since it is larger than the sum of its proper divisors (39847966).

42504464 is a wasteful number, since it uses less digits than its factorization.

42504464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656537 (or 2656531 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 42504464 is about 6519.5447693838. The cubic root of 42504464 is about 348.9888202044.

Adding to 42504464 its reverse (46440524), we get a palindrome (88944988).

The spelling of 42504464 in words is "forty-two million, five hundred four thousand, four hundred sixty-four".