1421242000 has 40 divisors (see below), whose sum is σ = 3436567992. Its totient is φ = 568496000.

The previous prime is 1421241949. The next prime is 1421242033. The reversal of 1421242000 is 2421241.

It can be written as a sum of positive squares in 4 ways, for example, as 13191424 + 1408050576 = 3632^2 + 37524^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 353311 + ... + 357310.

Almost surely, 2^1421242000 is an apocalyptic number.

1421242000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421242000 is an abundant number, since it is smaller than the sum of its proper divisors (2015325992).

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

1421242000 is an equidigital number, since it uses as much as digits as its factorization.

1421242000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710644 (or 710628 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1421242000 is about 37699.3633898505. The cubic root of 1421242000 is about 1124.3184678653.

Adding to 1421242000 its reverse (2421241), we get a palindrome (1423663241).

The spelling of 1421242000 in words is "one billion, four hundred twenty-one million, two hundred forty-two thousand".