280027964 has 6 divisors (see below), whose sum is σ = 490048944. Its totient is φ = 140013980.

The previous prime is 280027963. The next prime is 280027981. The reversal of 280027964 is 469720082.

280027964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×280027964³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280027963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35003492 + ... + 35003499.

It is an arithmetic number, because the mean of its divisors is an integer number (81674824).

Almost surely, 2^280027964 is an apocalyptic number.

It is an amenable number.

280027964 is a deficient number, since it is larger than the sum of its proper divisors (210020980).

280027964 is a wasteful number, since it uses less digits than its factorization.

280027964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70006995 (or 70006993 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 280027964 is about 16734.0360941406. The cubic root of 280027964 is about 654.2350403837.

The spelling of 280027964 in words is "two hundred eighty million, twenty-seven thousand, nine hundred sixty-four".