1420453252 has 12 divisors (see below), whose sum is σ = 2486871436. Its totient is φ = 709918560.

The previous prime is 1420453219. The next prime is 1420453253. The reversal of 1420453252 is 2523540241.

It can be written as a sum of positive squares in 2 ways, for example, as 603979776 + 816473476 = 24576^2 + 28574^2 .

It is a super-2 number, since 2×1420453252² = 4035374882234751008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1420453252.

It is not an unprimeable number, because it can be changed into a prime (1420453253) 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 3 ways as a sum of consecutive naturals, for example, 66483 + ... + 85210.

Almost surely, 2^1420453252 is an apocalyptic number.

It is an amenable number.

1420453252 is a deficient number, since it is larger than the sum of its proper divisors (1066418184).

1420453252 is a wasteful number, since it uses less digits than its factorization.

1420453252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154038 (or 154036 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1420453252 is about 37688.9009126029. The cubic root of 1420453252 is about 1124.1104413543.

Adding to 1420453252 its reverse (2523540241), we get a palindrome (3943993493).

The spelling of 1420453252 in words is "one billion, four hundred twenty million, four hundred fifty-three thousand, two hundred fifty-two".