42457371 has 8 divisors (see below), whose sum is σ = 61756224. Its totient is φ = 25731720.

The previous prime is 42457357. The next prime is 42457417. The reversal of 42457371 is 17375424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42457371 - 2⁵ = 42457339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1286587 = 42457371 / (4 + 2 + 4 + 5 + 7 + 3 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (42457301) 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, 643261 + ... + 643326.

It is an arithmetic number, because the mean of its divisors is an integer number (7719528).

Almost surely, 2^42457371 is an apocalyptic number.

42457371 is a deficient number, since it is larger than the sum of its proper divisors (19298853).

42457371 is a wasteful number, since it uses less digits than its factorization.

42457371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286601.

The product of its digits is 23520, while the sum is 33.

The square root of 42457371 is about 6515.9320898855. The cubic root of 42457371 is about 348.8598846964.

The spelling of 42457371 in words is "forty-two million, four hundred fifty-seven thousand, three hundred seventy-one".