4642945 has 8 divisors (see below), whose sum is σ = 5722344. Its totient is φ = 3613824.

The previous prime is 4642927. The next prime is 4642949. The reversal of 4642945 is 5492464.

It can be written as a sum of positive squares in 4 ways, for example, as 848241 + 3794704 = 921^2 + 1948^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4642945 - 2⁷ = 4642817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4642945.

It is not an unprimeable number, because it can be changed into a prime (4642949) 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, 12364 + ... + 12733.

It is an arithmetic number, because the mean of its divisors is an integer number (715293).

Almost surely, 2^4642945 is an apocalyptic number.

It is an amenable number.

4642945 is a deficient number, since it is larger than the sum of its proper divisors (1079399).

4642945 is a wasteful number, since it uses less digits than its factorization.

4642945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25139.

The product of its digits is 34560, while the sum is 34.

The square root of 4642945 is about 2154.7494053834. The cubic root of 4642945 is about 166.8262981690.

The spelling of 4642945 in words is "four million, six hundred forty-two thousand, nine hundred forty-five".