4545648 has 30 divisors (see below), whose sum is σ = 12721904. Its totient is φ = 1515168.

The previous prime is 4545643. The next prime is 4545683. The reversal of 4545648 is 8465454.

4545648 is a `hidden beast` number, since 4 + 5 + 4 + 5 + 648 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15640 + ... + 15927.

Almost surely, 2^4545648 is an apocalyptic number.

4545648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4545648 is an abundant number, since it is smaller than the sum of its proper divisors (8176256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545648 is a wasteful number, since it uses less digits than its factorization.

4545648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31581 (or 31572 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 4545648 is about 2132.0525321858. The cubic root of 4545648 is about 165.6527312294.

The spelling of 4545648 in words is "four million, five hundred forty-five thousand, six hundred forty-eight".