1402454221 has 8 divisors (see below), whose sum is σ = 1603048320. Its totient is φ = 1201921008.

The previous prime is 1402454213. The next prime is 1402454231. The reversal of 1402454221 is 1224542041.

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 1402454221 - 2³ = 1402454213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402454231) 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, 57000 + ... + 77806.

It is an arithmetic number, because the mean of its divisors is an integer number (200381040).

Almost surely, 2^1402454221 is an apocalyptic number.

It is an amenable number.

1402454221 is a deficient number, since it is larger than the sum of its proper divisors (200594099).

1402454221 is an equidigital number, since it uses as much as digits as its factorization.

1402454221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30443.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1402454221 is about 37449.3554150135. The cubic root of 1402454221 is about 1119.3422533071.

Adding to 1402454221 its reverse (1224542041), we get a palindrome (2626996262).

The spelling of 1402454221 in words is "one billion, four hundred two million, four hundred fifty-four thousand, two hundred twenty-one".