1421748899 has 8 divisors (see below), whose sum is σ = 1445660448. Its totient is φ = 1397856960.

The previous prime is 1421748883. The next prime is 1421748931. The reversal of 1421748899 is 9988471241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421748899 - 2⁴ = 1421748883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421748899.

It is not an unprimeable number, because it can be changed into a prime (1421748299) 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, 254474 + ... + 260000.

It is an arithmetic number, because the mean of its divisors is an integer number (180707556).

Almost surely, 2^1421748899 is an apocalyptic number.

1421748899 is a deficient number, since it is larger than the sum of its proper divisors (23911549).

1421748899 is an equidigital number, since it uses as much as digits as its factorization.

1421748899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805.

The product of its digits is 1161216, while the sum is 53.

The square root of 1421748899 is about 37706.0857024433. The cubic root of 1421748899 is about 1124.4521181433.

The spelling of 1421748899 in words is "one billion, four hundred twenty-one million, seven hundred forty-eight thousand, eight hundred ninety-nine".