1421930403 has 16 divisors (see below), whose sum is σ = 2198154240. Its totient is φ = 906737832.

The previous prime is 1421930399. The next prime is 1421930441. The reversal of 1421930403 is 3040391241.

1421930403 is a `hidden beast` number, since 14 + 219 + 30 + 403 = 666.

It is not a de Polignac number, because 1421930403 - 2² = 1421930399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1421930453) 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, 1144251 + ... + 1145492.

It is an arithmetic number, because the mean of its divisors is an integer number (137384640).

Almost surely, 2^1421930403 is an apocalyptic number.

1421930403 is a deficient number, since it is larger than the sum of its proper divisors (776223837).

1421930403 is a wasteful number, since it uses less digits than its factorization.

1421930403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289775 (or 2289769 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1421930403 is about 37708.4924519663. The cubic root of 1421930403 is about 1124.4999662251.

The spelling of 1421930403 in words is "one billion, four hundred twenty-one million, nine hundred thirty thousand, four hundred three".