1421406867 has 6 divisors (see below), whose sum is σ = 1895296228. Its totient is φ = 947561044.

The previous prime is 1421406829. The next prime is 1421406887. The reversal of 1421406867 is 7686041241.

1421406867 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1421406867 - 2⁶ = 1421406803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421406817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54418 + ... + 76184.

Almost surely, 2^1421406867 is an apocalyptic number.

1421406867 is a deficient number, since it is larger than the sum of its proper divisors (473889361).

1421406867 is an frugal number, since it uses more digits than its factorization.

1421406867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43537 (or 21770 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1421406867 is about 37701.5499283518. The cubic root of 1421406867 is about 1124.3619406039.

The spelling of 1421406867 in words is "one billion, four hundred twenty-one million, four hundred six thousand, eight hundred sixty-seven".