280420467 has 4 divisors (see below), whose sum is σ = 373893960. Its totient is φ = 186946976.

The previous prime is 280420429. The next prime is 280420489. The reversal of 280420467 is 764024082.

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

It is a cyclic number.

It is not a de Polignac number, because 280420467 - 2⁸ = 280420211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280420417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46736742 + ... + 46736747.

It is an arithmetic number, because the mean of its divisors is an integer number (93473490).

Almost surely, 2^280420467 is an apocalyptic number.

280420467 is a deficient number, since it is larger than the sum of its proper divisors (93473493).

280420467 is an equidigital number, since it uses as much as digits as its factorization.

280420467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93473492.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 280420467 is about 16745.7596722275. The cubic root of 280420467 is about 654.5405685995.

The spelling of 280420467 in words is "two hundred eighty million, four hundred twenty thousand, four hundred sixty-seven".