1422544387 has 8 divisors (see below), whose sum is σ = 1570564800. Its totient is φ = 1277640360.

The previous prime is 1422544381. The next prime is 1422544391. The reversal of 1422544387 is 7834452241.

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 1422544387 - 2¹¹ = 1422542339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422544381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778137 + ... + 779962.

It is an arithmetic number, because the mean of its divisors is an integer number (196320600).

Almost surely, 2^1422544387 is an apocalyptic number.

1422544387 is a deficient number, since it is larger than the sum of its proper divisors (148020413).

1422544387 is a wasteful number, since it uses less digits than its factorization.

1422544387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558193.

The product of its digits is 215040, while the sum is 40.

The square root of 1422544387 is about 37716.6327632783. The cubic root of 1422544387 is about 1124.6617945011.

It can be divided in two parts, 142254 and 4387, that added together give a palindrome (146641).

The spelling of 1422544387 in words is "one billion, four hundred twenty-two million, five hundred forty-four thousand, three hundred eighty-seven".