1421345604 has 48 divisors (see below), whose sum is σ = 3795470336. Its totient is φ = 405540000.

The previous prime is 1421345603. The next prime is 1421345657. The reversal of 1421345604 is 4065431241.

It is not an unprimeable number, because it can be changed into a prime (1421345603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51819 + ... + 74349.

Almost surely, 2^1421345604 is an apocalyptic number.

1421345604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1421345604 is an abundant number, since it is smaller than the sum of its proper divisors (2374124732).

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

1421345604 is a wasteful number, since it uses less digits than its factorization.

1421345604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23296 (or 23294 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1421345604 is about 37700.7374463683. The cubic root of 1421345604 is about 1124.3457869426.

Adding to 1421345604 its reverse (4065431241), we get a palindrome (5486776845).

The spelling of 1421345604 in words is "one billion, four hundred twenty-one million, three hundred forty-five thousand, six hundred four".