275730402 has 8 divisors (see below), whose sum is σ = 551460816. Its totient is φ = 91910132.

The previous prime is 275730397. The next prime is 275730457. The reversal of 275730402 is 204037572.

It is a sphenic number, since it is the product of 3 distinct primes.

275730402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 275730402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22977528 + ... + 22977539.

It is an arithmetic number, because the mean of its divisors is an integer number (68932602).

Almost surely, 2^275730402 is an apocalyptic number.

275730402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

275730402 is a wasteful number, since it uses less digits than its factorization.

275730402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45955072.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 275730402 is about 16605.1317971283. The cubic root of 275730402 is about 650.8709445190.

Adding to 275730402 its reverse (204037572), we get a palindrome (479767974).

The spelling of 275730402 in words is "two hundred seventy-five million, seven hundred thirty thousand, four hundred two".