1421344554 has 16 divisors (see below), whose sum is σ = 3248787648. Its totient is φ = 406098432.

The previous prime is 1421344553. The next prime is 1421344567. The reversal of 1421344554 is 4554431241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1421344553) 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, 16920727 + ... + 16920810.

It is an arithmetic number, because the mean of its divisors is an integer number (203049228).

Almost surely, 2^1421344554 is an apocalyptic number.

1421344554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1421344554 is an abundant number, since it is smaller than the sum of its proper divisors (1827443094).

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

1421344554 is a wasteful number, since it uses less digits than its factorization.

1421344554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33841549.

The product of its digits is 38400, while the sum is 33.

The square root of 1421344554 is about 37700.7235209087. The cubic root of 1421344554 is about 1124.3455100774.

Adding to 1421344554 its reverse (4554431241), we get a palindrome (5975775795).

The spelling of 1421344554 in words is "one billion, four hundred twenty-one million, three hundred forty-four thousand, five hundred fifty-four".