1421205414 has 16 divisors (see below), whose sum is σ = 2845212480. Its totient is φ = 473268200.

The previous prime is 1421205343. The next prime is 1421205419. The reversal of 1421205414 is 4145021241.

It is a super-2 number, since 2×1421205414² = 4039649657565822792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421205419) 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, 110112 + ... + 122339.

It is an arithmetic number, because the mean of its divisors is an integer number (177825780).

Almost surely, 2^1421205414 is an apocalyptic number.

1421205414 is an abundant number, since it is smaller than the sum of its proper divisors (1424007066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421205414 is a wasteful number, since it uses less digits than its factorization.

1421205414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233475.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1421205414 is about 37698.8781530698. The cubic root of 1421205414 is about 1124.3088202781.

Adding to 1421205414 its reverse (4145021241), we get a palindrome (5566226655).

The spelling of 1421205414 in words is "one billion, four hundred twenty-one million, two hundred five thousand, four hundred fourteen".