281463402 has 16 divisors (see below), whose sum is σ = 614102112. Its totient is φ = 85291920.

The previous prime is 281463367. The next prime is 281463409. The reversal of 281463402 is 204364182.

It is a self number, because there is not a number n which added to its sum of digits gives 281463402.

It is not an unprimeable number, because it can be changed into a prime (281463409) 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 in 7 ways as a sum of consecutive naturals, for example, 2132233 + ... + 2132364.

It is an arithmetic number, because the mean of its divisors is an integer number (38381382).

Almost surely, 2^281463402 is an apocalyptic number.

281463402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

281463402 is an abundant number, since it is smaller than the sum of its proper divisors (332638710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281463402 is a wasteful number, since it uses less digits than its factorization.

281463402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264613.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 281463402 is about 16776.8710431952. The cubic root of 281463402 is about 655.3510167191.

The spelling of 281463402 in words is "two hundred eighty-one million, four hundred sixty-three thousand, four hundred two".