442135248 has 40 divisors (see below), whose sum is σ = 1149765696. Its totient is φ = 146400000.

The previous prime is 442135241. The next prime is 442135297. The reversal of 442135248 is 842531244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442135241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23253 + ... + 37748.

Almost surely, 2^442135248 is an apocalyptic number.

442135248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

442135248 is an abundant number, since it is smaller than the sum of its proper divisors (707630448).

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

442135248 is a wasteful number, since it uses less digits than its factorization.

442135248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61163 (or 61157 counting only the distinct ones).

The product of its digits is 30720, while the sum is 33.

The square root of 442135248 is about 21027.0123412719. The cubic root of 442135248 is about 761.8188476865.

The spelling of 442135248 in words is "four hundred forty-two million, one hundred thirty-five thousand, two hundred forty-eight".