545467272 has 128 divisors (see below), whose sum is σ = 1602201600. Its totient is φ = 151538688.

The previous prime is 545467267. The next prime is 545467277. The reversal of 545467272 is 272764545.

It is an interprime number because it is at equal distance from previous prime (545467267) and next prime (545467277).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (545467277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1119813 + ... + 1120299.

It is an arithmetic number, because the mean of its divisors is an integer number (12517200).

Almost surely, 2^545467272 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 545467272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801100800).

545467272 is an abundant number, since it is smaller than the sum of its proper divisors (1056734328).

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

545467272 is a wasteful number, since it uses less digits than its factorization.

545467272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 671 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

The square root of 545467272 is about 23355.2407823169. The cubic root of 545467272 is about 817.0642951258.

The spelling of 545467272 in words is "five hundred forty-five million, four hundred sixty-seven thousand, two hundred seventy-two".