275945472 has 144 divisors (see below), whose sum is σ = 870072840. Its totient is φ = 83558400.

The previous prime is 275945459. The next prime is 275945497. The reversal of 275945472 is 274549572.

275945472 is a `hidden beast` number, since 2 + 7 + 594 + 54 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×275945472² = 152291807034605568, which contains 22 as substring.

Its product of digits (705600) is a multiple of the sum of its prime factors (1400).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202072 + ... + 203432.

Almost surely, 2^275945472 is an apocalyptic number.

275945472 is a gapful number since it is divisible by the number (22) 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 275945472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435036420).

275945472 is an abundant number, since it is smaller than the sum of its proper divisors (594127368).

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

275945472 is a wasteful number, since it uses less digits than its factorization.

275945472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1377 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 275945472 is about 16611.6065448228. The cubic root of 275945472 is about 651.0401272100.

The spelling of 275945472 in words is "two hundred seventy-five million, nine hundred forty-five thousand, four hundred seventy-two".