275433720 has 32 divisors (see below), whose sum is σ = 826301520. Its totient is φ = 73448960.

The previous prime is 275433713. The next prime is 275433733. The reversal of 275433720 is 27334572.

It is a super-2 number, since 2×275433720² = 151727468226076800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147521 + ... + 1147760.

Almost surely, 2^275433720 is an apocalyptic number.

275433720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275433720 is an abundant number, since it is smaller than the sum of its proper divisors (550867800).

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

275433720 is a wasteful number, since it uses less digits than its factorization.

275433720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295295 (or 2295291 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 275433720 is about 16596.1959496747. The cubic root of 275433720 is about 650.6374181084.

The spelling of 275433720 in words is "two hundred seventy-five million, four hundred thirty-three thousand, seven hundred twenty".