1452242421 has 24 divisors (see below), whose sum is σ = 2398818240. Its totient is φ = 829345536.

The previous prime is 1452242417. The next prime is 1452242431. The reversal of 1452242421 is 1242422541.

It is a happy number.

1452242421 is a `hidden beast` number, since 14 + 5 + 224 + 2 + 421 = 666.

It is not a de Polignac number, because 1452242421 - 2² = 1452242417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452242401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112906 + ... + 125108.

It is an arithmetic number, because the mean of its divisors is an integer number (99950760).

Almost surely, 2^1452242421 is an apocalyptic number.

It is an amenable number.

1452242421 is a deficient number, since it is larger than the sum of its proper divisors (946575819).

1452242421 is a wasteful number, since it uses less digits than its factorization.

1452242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14105 (or 14102 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 1452242421 is about 38108.2985844291. The cubic root of 1452242421 is about 1132.4343636945.

Adding to 1452242421 its reverse (1242422541), we get a palindrome (2694664962).

The spelling of 1452242421 in words is "one billion, four hundred fifty-two million, two hundred forty-two thousand, four hundred twenty-one".