1622234440 has 32 divisors (see below), whose sum is σ = 3842136000. Its totient is φ = 614741184.

The previous prime is 1622234437. The next prime is 1622234479. The reversal of 1622234440 is 444322261.

It is a super-2 number, since 2×1622234440² = 5263289156644227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1622234399 and 1622234408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066500 + ... + 1068019.

It is an arithmetic number, because the mean of its divisors is an integer number (120066750).

Almost surely, 2^1622234440 is an apocalyptic number.

1622234440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1622234440 is an abundant number, since it is smaller than the sum of its proper divisors (2219901560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1622234440 is a wasteful number, since it uses less digits than its factorization.

1622234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134549 (or 2134545 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1622234440 is about 40276.9715842688. The cubic root of 1622234440 is about 1175.0000156934. Note that the first 4 decimals are identical.

The spelling of 1622234440 in words is "one billion, six hundred twenty-two million, two hundred thirty-four thousand, four hundred forty".