545439648 has 96 divisors (see below), whose sum is σ = 1563299136. Its totient is φ = 165500928.

The previous prime is 545439623. The next prime is 545439659. The reversal of 545439648 is 846934545.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×545439648² = 595008819220727808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 545439597 and 545439606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88111 + ... + 94097.

It is an arithmetic number, because the mean of its divisors is an integer number (16284366).

Almost surely, 2^545439648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545439648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (781649568).

545439648 is an abundant number, since it is smaller than the sum of its proper divisors (1017859488).

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

545439648 is a wasteful number, since it uses less digits than its factorization.

545439648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086 (or 6078 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The square root of 545439648 is about 23354.6493872205. The cubic root of 545439648 is about 817.0505020800.

The spelling of 545439648 in words is "five hundred forty-five million, four hundred thirty-nine thousand, six hundred forty-eight".