42397648 has 20 divisors (see below), whose sum is σ = 85717728. Its totient is φ = 20276960.

The previous prime is 42397637. The next prime is 42397651. The reversal of 42397648 is 84679324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57238 + ... + 57973.

Almost surely, 2^42397648 is an apocalyptic number.

It is an amenable number.

42397648 is an abundant number, since it is smaller than the sum of its proper divisors (43320080).

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

42397648 is a wasteful number, since it uses less digits than its factorization.

42397648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115242 (or 115236 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 42397648 is about 6511.3476331709. The cubic root of 42397648 is about 348.6962324239.

The spelling of 42397648 in words is "forty-two million, three hundred ninety-seven thousand, six hundred forty-eight".