1422021554 has 8 divisors (see below), whose sum is σ = 2206585260. Its totient is φ = 686493136.

The previous prime is 1422021551. The next prime is 1422021571. The reversal of 1422021554 is 4551202241.

It can be written as a sum of positive squares in 2 ways, for example, as 1261315225 + 160706329 = 35515^2 + 12677^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1422021551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258749 + ... + 12258864.

Almost surely, 2^1422021554 is an apocalyptic number.

1422021554 is a deficient number, since it is larger than the sum of its proper divisors (784563706).

1422021554 is a wasteful number, since it uses less digits than its factorization.

1422021554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24517644.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1422021554 is about 37709.7010595417. The cubic root of 1422021554 is about 1124.5239939145.

Adding to 1422021554 its reverse (4551202241), we get a palindrome (5973223795).

The spelling of 1422021554 in words is "one billion, four hundred twenty-two million, twenty-one thousand, five hundred fifty-four".