280796134 has 4 divisors (see below), whose sum is σ = 421194204. Its totient is φ = 140398066.

The previous prime is 280796107. The next prime is 280796137. The reversal of 280796134 is 431697082.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280796137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70199032 + ... + 70199035.

It is an arithmetic number, because the mean of its divisors is an integer number (105298551).

Almost surely, 2^280796134 is an apocalyptic number.

280796134 is a deficient number, since it is larger than the sum of its proper divisors (140398070).

280796134 is a wasteful number, since it uses less digits than its factorization.

280796134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140398069.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 280796134 is about 16756.9726979547. The cubic root of 280796134 is about 654.8327246057.

The spelling of 280796134 in words is "two hundred eighty million, seven hundred ninety-six thousand, one hundred thirty-four".