4645072 has 10 divisors (see below), whose sum is σ = 8999858. Its totient is φ = 2322528.

The previous prime is 4645061. The next prime is 4645073. The reversal of 4645072 is 2705464.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 1700416 = 1716^2 + 1304^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4645072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145143 + ... + 145174.

Almost surely, 2^4645072 is an apocalyptic number.

It is an amenable number.

4645072 is a deficient number, since it is larger than the sum of its proper divisors (4354786).

4645072 is a wasteful number, since it uses less digits than its factorization.

4645072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290325 (or 290319 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 4645072 is about 2155.2429097436. The cubic root of 4645072 is about 166.8517694567.

The spelling of 4645072 in words is "four million, six hundred forty-five thousand, seventy-two".