42391248 has 40 divisors (see below), whose sum is σ = 110091168. Its totient is φ = 14055552.

The previous prime is 42391241. The next prime is 42391259. The reversal of 42391248 is 84219324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42391241) 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, 7215 + ... + 11697.

Almost surely, 2^42391248 is an apocalyptic number.

42391248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42391248 is an abundant number, since it is smaller than the sum of its proper divisors (67699920).

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

42391248 is a wasteful number, since it uses less digits than its factorization.

42391248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4685 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 42391248 is about 6510.8561648987. The cubic root of 42391248 is about 348.6786861032.

The spelling of 42391248 in words is "forty-two million, three hundred ninety-one thousand, two hundred forty-eight".