1421043452 has 24 divisors (see below), whose sum is σ = 2508105600. Its totient is φ = 704465216.

The previous prime is 1421043443. The next prime is 1421043469. The reversal of 1421043452 is 2543401241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266549 + ... + 271827.

It is an arithmetic number, because the mean of its divisors is an integer number (104504400).

Almost surely, 2^1421043452 is an apocalyptic number.

It is an amenable number.

1421043452 is a deficient number, since it is larger than the sum of its proper divisors (1087062148).

1421043452 is a wasteful number, since it uses less digits than its factorization.

1421043452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845 (or 5843 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1421043452 is about 37696.7299908095. The cubic root of 1421043452 is about 1124.2661095339.

Adding to 1421043452 its reverse (2543401241), we get a palindrome (3964444693).

The spelling of 1421043452 in words is "one billion, four hundred twenty-one million, forty-three thousand, four hundred fifty-two".