280325006 has 16 divisors (see below), whose sum is σ = 457233504. Its totient is φ = 128123424.

The previous prime is 280324981. The next prime is 280325009. The reversal of 280325006 is 600523082.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280325009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49661 + ... + 55016.

It is an arithmetic number, because the mean of its divisors is an integer number (28577094).

Almost surely, 2^280325006 is an apocalyptic number.

280325006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

280325006 is a deficient number, since it is larger than the sum of its proper divisors (176908498).

280325006 is a wasteful number, since it uses less digits than its factorization.

280325006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104795.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 280325006 is about 16742.9091259554. The cubic root of 280325006 is about 654.4662870639.

Adding to 280325006 its reverse (600523082), we get a palindrome (880848088).

The spelling of 280325006 in words is "two hundred eighty million, three hundred twenty-five thousand, six".