280142074 has 4 divisors (see below), whose sum is σ = 420213114. Its totient is φ = 140071036.

The previous prime is 280142039. The next prime is 280142087. The reversal of 280142074 is 470241082.

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

It can be written as a sum of positive squares in only one way, i.e., 226954225 + 53187849 = 15065^2 + 7293^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70035517 + ... + 70035520.

Almost surely, 2^280142074 is an apocalyptic number.

280142074 is a deficient number, since it is larger than the sum of its proper divisors (140071040).

280142074 is a wasteful number, since it uses less digits than its factorization.

280142074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140071039.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 280142074 is about 16737.4452650337. The cubic root of 280142074 is about 654.3238941554.

The spelling of 280142074 in words is "two hundred eighty million, one hundred forty-two thousand, seventy-four".