1421886405 has 8 divisors (see below), whose sum is σ = 2275018272. Its totient is φ = 758339408.

The previous prime is 1421886397. The next prime is 1421886407. The reversal of 1421886405 is 5046881241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421886405 - 2³ = 1421886397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421886407) 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, 47396199 + ... + 47396228.

It is an arithmetic number, because the mean of its divisors is an integer number (284377284).

Almost surely, 2^1421886405 is an apocalyptic number.

1421886405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1421886405 is a deficient number, since it is larger than the sum of its proper divisors (853131867).

1421886405 is an equidigital number, since it uses as much as digits as its factorization.

1421886405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94792435.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 1421886405 is about 37707.9090510201. The cubic root of 1421886405 is about 1124.4883678469.

The spelling of 1421886405 in words is "one billion, four hundred twenty-one million, eight hundred eighty-six thousand, four hundred five".