1449469021 has 16 divisors (see below), whose sum is σ = 1946141568. Its totient is φ = 1042574400.

The previous prime is 1449469009. The next prime is 1449469033. The reversal of 1449469021 is 1209649441.

It is an interprime number because it is at equal distance from previous prime (1449469009) and next prime (1449469033).

It is a de Polignac number, because none of the positive numbers 2^k-1449469021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449469061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723010 + ... + 725011.

It is an arithmetic number, because the mean of its divisors is an integer number (121633848).

Almost surely, 2^1449469021 is an apocalyptic number.

1449469021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1449469021 is a deficient number, since it is larger than the sum of its proper divisors (496672547).

1449469021 is a wasteful number, since it uses less digits than its factorization.

1449469021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448052.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1449469021 is about 38071.8927950792. The cubic root of 1449469021 is about 1131.7130206548.

The spelling of 1449469021 in words is "one billion, four hundred forty-nine million, four hundred sixty-nine thousand, twenty-one".