280541423 has 4 divisors (see below), whose sum is σ = 281147808. Its totient is φ = 279935040.

The previous prime is 280541407. The next prime is 280541461. The reversal of 280541423 is 324145082.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324145082 = 2 ⋅162072541.

It is a cyclic number.

It is not a de Polignac number, because 280541423 - 2⁴ = 280541407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280541923) 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, 302498 + ... + 303423.

It is an arithmetic number, because the mean of its divisors is an integer number (70286952).

Almost surely, 2^280541423 is an apocalyptic number.

280541423 is a deficient number, since it is larger than the sum of its proper divisors (606385).

280541423 is an equidigital number, since it uses as much as digits as its factorization.

280541423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606384.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 280541423 is about 16749.3708240041. The cubic root of 280541423 is about 654.6346644757.

The spelling of 280541423 in words is "two hundred eighty million, five hundred forty-one thousand, four hundred twenty-three".