275450742 has 48 divisors (see below), whose sum is σ = 688476672. Its totient is φ = 77960880.

The previous prime is 275450741. The next prime is 275450743. The reversal of 275450742 is 247054572.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (275450741) and next prime (275450743).

It is a super-2 number, since 2×275450742² = 151746222536701128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275450697 and 275450706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275450741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3267 + ... + 23697.

It is an arithmetic number, because the mean of its divisors is an integer number (14343264).

Almost surely, 2^275450742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275450742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344238336).

275450742 is an abundant number, since it is smaller than the sum of its proper divisors (413025930).

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

275450742 is a wasteful number, since it uses less digits than its factorization.

275450742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20553 (or 20550 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 275450742 is about 16596.7087701146. The cubic root of 275450742 is about 650.6508211175.

The spelling of 275450742 in words is "two hundred seventy-five million, four hundred fifty thousand, seven hundred forty-two".