42152428 has 24 divisors (see below), whose sum is σ = 78180480. Its totient is φ = 19850880.

The previous prime is 42152419. The next prime is 42152449. The reversal of 42152428 is 82425124.

It is a junction number, because it is equal to n+sod(n) for n = 42152396 and 42152405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325 + ... + 9187.

It is an arithmetic number, because the mean of its divisors is an integer number (3257520).

Almost surely, 2^42152428 is an apocalyptic number.

It is an amenable number.

42152428 is a deficient number, since it is larger than the sum of its proper divisors (36028052).

42152428 is a wasteful number, since it uses less digits than its factorization.

42152428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8937 (or 8935 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 42152428 is about 6492.4901232116. The cubic root of 42152428 is about 348.0226677444.

The spelling of 42152428 in words is "forty-two million, one hundred fifty-two thousand, four hundred twenty-eight".