276742 has 4 divisors (see below), whose sum is σ = 415116. Its totient is φ = 138370.

The previous prime is 276739. The next prime is 276763. The reversal of 276742 is 247672.

276742 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×276742² = 153172269128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69184 + ... + 69187.

It is an arithmetic number, because the mean of its divisors is an integer number (103779).

2²⁷⁶⁷⁴² is an apocalyptic number.

276742 is a deficient number, since it is larger than the sum of its proper divisors (138374).

276742 is a wasteful number, since it uses less digits than its factorization.

276742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138373.

The product of its digits is 4704, while the sum is 28.

The square root of 276742 is about 526.0627339016. The cubic root of 276742 is about 65.1665943518.

It can be divided in two parts, 2767 and 42, that added together give a square (2809 = 53²).

The spelling of 276742 in words is "two hundred seventy-six thousand, seven hundred forty-two".