1421611949 has 8 divisors (see below), whose sum is σ = 1455750912. Its totient is φ = 1387522080.

The previous prime is 1421611943. The next prime is 1421611957. The reversal of 1421611949 is 9491161241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421611949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421611943) 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, 50084 + ... + 73154.

It is an arithmetic number, because the mean of its divisors is an integer number (181968864).

Almost surely, 2^1421611949 is an apocalyptic number.

It is an amenable number.

1421611949 is a deficient number, since it is larger than the sum of its proper divisors (34138963).

1421611949 is a wasteful number, since it uses less digits than its factorization.

1421611949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24547.

The product of its digits is 15552, while the sum is 38.

The square root of 1421611949 is about 37704.2696388619. The cubic root of 1421611949 is about 1124.4160126907.

The spelling of 1421611949 in words is "one billion, four hundred twenty-one million, six hundred eleven thousand, nine hundred forty-nine".