42455744 has 14 divisors (see below), whose sum is σ = 84248244. Its totient is φ = 21227840.

The previous prime is 42455741. The next prime is 42455789. The reversal of 42455744 is 44755424.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42455741) 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, 331622 + ... + 331749.

Almost surely, 2^42455744 is an apocalyptic number.

It is an amenable number.

42455744 is a deficient number, since it is larger than the sum of its proper divisors (41792500).

42455744 is an equidigital number, since it uses as much as digits as its factorization.

42455744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663383 (or 663373 counting only the distinct ones).

The product of its digits is 89600, while the sum is 35.

The square root of 42455744 is about 6515.8072408567. The cubic root of 42455744 is about 348.8554284441.

The spelling of 42455744 in words is "forty-two million, four hundred fifty-five thousand, seven hundred forty-four".