79940282 has 4 divisors (see below), whose sum is σ = 119910426. Its totient is φ = 39970140.

The previous prime is 79940251. The next prime is 79940291. The reversal of 79940282 is 28204997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28204997 = 61 ⋅462377.

It can be written as a sum of positive squares in only one way, i.e., 79405921 + 534361 = 8911^2 + 731^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19985069 + ... + 19985072.

Almost surely, 2^79940282 is an apocalyptic number.

79940282 is a deficient number, since it is larger than the sum of its proper divisors (39970144).

79940282 is a wasteful number, since it uses less digits than its factorization.

79940282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39970143.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 79940282 is about 8940.9329490831. The cubic root of 79940282 is about 430.7796958751.

The spelling of 79940282 in words is "seventy-nine million, nine hundred forty thousand, two hundred eighty-two".