1421879427 has 40 divisors (see below), whose sum is σ = 2173771776. Its totient is φ = 925969968.

The previous prime is 1421879423. The next prime is 1421879429. The reversal of 1421879427 is 7249781241.

1421879427 is a `hidden beast` number, since 1 + 4 + 218 + 7 + 9 + 427 = 666.

It is not a de Polignac number, because 1421879427 - 2² = 1421879423 is a prime.

It is a super-2 number, since 2×1421879427² = 4043482209851696658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421879423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 688198 + ... + 690260.

Almost surely, 2^1421879427 is an apocalyptic number.

1421879427 is a deficient number, since it is larger than the sum of its proper divisors (751892349).

1421879427 is a wasteful number, since it uses less digits than its factorization.

1421879427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2260 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 1421879427 is about 37707.8165238986. The cubic root of 1421879427 is about 1124.4865283440.

The spelling of 1421879427 in words is "one billion, four hundred twenty-one million, eight hundred seventy-nine thousand, four hundred twenty-seven".