1421884308 has 24 divisors (see below), whose sum is σ = 3572940448. Its totient is φ = 437502816.

The previous prime is 1421884307. The next prime is 1421884309. The reversal of 1421884308 is 8034881241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1421884307) and next prime (1421884309).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421884307) 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, 4557166 + ... + 4557477.

Almost surely, 2^1421884308 is an apocalyptic number.

It is an amenable number.

1421884308 is an abundant number, since it is smaller than the sum of its proper divisors (2151056140).

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

1421884308 is a wasteful number, since it uses less digits than its factorization.

1421884308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114663 (or 9114661 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 1421884308 is about 37707.8812451721. The cubic root of 1421884308 is about 1124.4878150477.

The spelling of 1421884308 in words is "one billion, four hundred twenty-one million, eight hundred eighty-four thousand, three hundred eight".