1421671276 has 24 divisors (see below), whose sum is σ = 2689653680. Its totient is φ = 655221312.

The previous prime is 1421671271. The next prime is 1421671309. The reversal of 1421671276 is 6721761241.

It is a super-2 number, since 2×1421671276² = 4042298434006936352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (1421671271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249975 + ... + 255598.

Almost surely, 2^1421671276 is an apocalyptic number.

It is an amenable number.

1421671276 is a deficient number, since it is larger than the sum of its proper divisors (1267982404).

1421671276 is a wasteful number, since it uses less digits than its factorization.

1421671276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505633 (or 505631 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 1421671276 is about 37705.0563717918. The cubic root of 1421671276 is about 1124.4316539260.

The spelling of 1421671276 in words is "one billion, four hundred twenty-one million, six hundred seventy-one thousand, two hundred seventy-six".