42764225 has 12 divisors (see below), whose sum is σ = 60603264. Its totient is φ = 29323920.

The previous prime is 42764209. The next prime is 42764237. The reversal of 42764225 is 52246724.

It is not a de Polignac number, because 42764225 - 2⁴ = 42764209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42764191 and 42764200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122009 + ... + 122358.

It is an arithmetic number, because the mean of its divisors is an integer number (5050272).

Almost surely, 2^42764225 is an apocalyptic number.

It is an amenable number.

42764225 is a deficient number, since it is larger than the sum of its proper divisors (17839039).

42764225 is a wasteful number, since it uses less digits than its factorization.

42764225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244384 (or 244379 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 42764225 is about 6539.4361377721. The cubic root of 42764225 is about 349.6983114576.

The spelling of 42764225 in words is "forty-two million, seven hundred sixty-four thousand, two hundred twenty-five".