280540030 has 8 divisors (see below), whose sum is σ = 504972072. Its totient is φ = 112216008.

The previous prime is 280540009. The next prime is 280540033. The reversal of 280540030 is 30045082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 280539983 and 280540010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280540033) 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, 14026992 + ... + 14027011.

It is an arithmetic number, because the mean of its divisors is an integer number (63121509).

Almost surely, 2^280540030 is an apocalyptic number.

280540030 is a deficient number, since it is larger than the sum of its proper divisors (224432042).

280540030 is a wasteful number, since it uses less digits than its factorization.

280540030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28054010.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 280540030 is about 16749.3292403009. The cubic root of 280540030 is about 654.6335809666.

The spelling of 280540030 in words is "two hundred eighty million, five hundred forty thousand, thirty".