82257742 has 8 divisors (see below), whose sum is σ = 141013296. Its totient is φ = 35253312.

The previous prime is 82257727. The next prime is 82257797. The reversal of 82257742 is 24775228.

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

It is a super-2 number, since 2×82257742² = 13532672237877128, which contains 22 as substring.

It is a congruent number.

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, 2937763 + ... + 2937790.

It is an arithmetic number, because the mean of its divisors is an integer number (17626662).

Almost surely, 2^82257742 is an apocalyptic number.

82257742 is a deficient number, since it is larger than the sum of its proper divisors (58755554).

82257742 is a wasteful number, since it uses less digits than its factorization.

82257742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875562.

The product of its digits is 62720, while the sum is 37.

The square root of 82257742 is about 9069.6053938416. The cubic root of 82257742 is about 434.9028575965.

It can be divided in two parts, 822 and 57742, that added together give a square (58564 = 242²).

The spelling of 82257742 in words is "eighty-two million, two hundred fifty-seven thousand, seven hundred forty-two".