42347448 has 160 divisors (see below), whose sum is σ = 139653360. Its totient is φ = 11819520.

The previous prime is 42347443. The next prime is 42347449. The reversal of 42347448 is 84474324.

It is a happy number.

It is a super-2 number, since 2×42347448² = 3586612704225408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42347441) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 92436 + ... + 92892.

Almost surely, 2^42347448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42347448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69826680).

42347448 is an abundant number, since it is smaller than the sum of its proper divisors (97305912).

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

42347448 is a wasteful number, since it uses less digits than its factorization.

42347448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 486 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 42347448 is about 6507.4916826685. The cubic root of 42347448 is about 348.5585560443.

The spelling of 42347448 in words is "forty-two million, three hundred forty-seven thousand, four hundred forty-eight".