42455146 has 8 divisors (see below), whose sum is σ = 64726884. Its totient is φ = 20879520.

The previous prime is 42455123. The next prime is 42455183. The reversal of 42455146 is 64155424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 35105625 + 7349521 = 5925^2 + 2711^2 .

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

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, 173875 + ... + 174118.

Almost surely, 2^42455146 is an apocalyptic number.

42455146 is a deficient number, since it is larger than the sum of its proper divisors (22271738).

42455146 is a wasteful number, since it uses less digits than its factorization.

42455146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348056.

The product of its digits is 19200, while the sum is 31.

The square root of 42455146 is about 6515.7613522903. The cubic root of 42455146 is about 348.8537905304.

The spelling of 42455146 in words is "forty-two million, four hundred fifty-five thousand, one hundred forty-six".