1440064622 has 8 divisors (see below), whose sum is σ = 2161397736. Its totient is φ = 719598712.

The previous prime is 1440064621. The next prime is 1440064627. The reversal of 1440064622 is 2264600441.

It is a happy number.

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

It is a super-2 number, since 2×1440064622² = 4147572231072005768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440064621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212633 + ... + 219300.

It is an arithmetic number, because the mean of its divisors is an integer number (270174717).

Almost surely, 2^1440064622 is an apocalyptic number.

1440064622 is a deficient number, since it is larger than the sum of its proper divisors (721333114).

1440064622 is a wasteful number, since it uses less digits than its factorization.

1440064622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433602.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1440064622 is about 37948.1833820804. The cubic root of 1440064622 is about 1129.2601265241.

The spelling of 1440064622 in words is "one billion, four hundred forty million, sixty-four thousand, six hundred twenty-two".