42446725 has 6 divisors (see below), whose sum is σ = 52633970. Its totient is φ = 33957360.

The previous prime is 42446713. The next prime is 42446731. The reversal of 42446725 is 52764424.

It can be written as a sum of positive squares in 3 ways, for example, as 27556 + 42419169 = 166^2 + 6513^2 .

It is not a de Polignac number, because 42446725 - 2⁷ = 42446597 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848910 + ... + 848959.

Almost surely, 2^42446725 is an apocalyptic number.

It is an amenable number.

42446725 is a deficient number, since it is larger than the sum of its proper divisors (10187245).

42446725 is a wasteful number, since it uses less digits than its factorization.

42446725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697879 (or 1697874 counting only the distinct ones).

The product of its digits is 53760, while the sum is 34.

The square root of 42446725 is about 6515.1151179392. The cubic root of 42446725 is about 348.8307238958.

The spelling of 42446725 in words is "forty-two million, four hundred forty-six thousand, seven hundred twenty-five".