1421444949 has 16 divisors (see below), whose sum is σ = 1946837760. Its totient is φ = 921968640.

The previous prime is 1421444903. The next prime is 1421444957. The reversal of 1421444949 is 9494441241.

It is not a de Polignac number, because 1421444949 - 2¹⁷ = 1421313877 is a prime.

It is a super-2 number, since 2×1421444949² = 4041011486075225202, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421444949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421440949) 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, 29397 + ... + 60885.

It is an arithmetic number, because the mean of its divisors is an integer number (121677360).

Almost surely, 2^1421444949 is an apocalyptic number.

It is an amenable number.

1421444949 is a deficient number, since it is larger than the sum of its proper divisors (525392811).

1421444949 is a wasteful number, since it uses less digits than its factorization.

1421444949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31900.

The product of its digits is 165888, while the sum is 42.

The square root of 1421444949 is about 37702.0549705185. The cubic root of 1421444949 is about 1124.3719817282.

The spelling of 1421444949 in words is "one billion, four hundred twenty-one million, four hundred forty-four thousand, nine hundred forty-nine".