273964560 has 80 divisors (see below), whose sum is σ = 851671680. Its totient is φ = 72852480.

The previous prime is 273964519. The next prime is 273964573. The reversal of 273964560 is 65469372.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 96765 + ... + 99555.

It is an arithmetic number, because the mean of its divisors is an integer number (10645896).

Almost surely, 2^273964560 is an apocalyptic number.

273964560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273964560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425835840).

273964560 is an abundant number, since it is smaller than the sum of its proper divisors (577707120).

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

273964560 is a wasteful number, since it uses less digits than its factorization.

273964560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 42.

The square root of 273964560 is about 16551.8748182797. The cubic root of 273964560 is about 649.4785245486.

The spelling of 273964560 in words is "two hundred seventy-three million, nine hundred sixty-four thousand, five hundred sixty".