1421628955 has 8 divisors (see below), whose sum is σ = 1706825232. Its totient is φ = 1136722848.

The previous prime is 1421628941. The next prime is 1421628959. The reversal of 1421628955 is 5598261241.

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 1421628955 - 2⁹ = 1421628443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421628959) 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, 61612 + ... + 81481.

It is an arithmetic number, because the mean of its divisors is an integer number (213353154).

Almost surely, 2^1421628955 is an apocalyptic number.

1421628955 is a deficient number, since it is larger than the sum of its proper divisors (285196277).

1421628955 is a wasteful number, since it uses less digits than its factorization.

1421628955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145085.

The product of its digits is 172800, while the sum is 43.

The square root of 1421628955 is about 37704.4951564134. The cubic root of 1421628955 is about 1124.4204962730.

The spelling of 1421628955 in words is "one billion, four hundred twenty-one million, six hundred twenty-eight thousand, nine hundred fifty-five".