1622467640 has 64 divisors (see below), whose sum is σ = 3784816800. Its totient is φ = 625218048.

The previous prime is 1622467603. The next prime is 1622467657. The reversal of 1622467640 is 467642261.

It is a junction number, because it is equal to n+sod(n) for n = 1622467594 and 1622467603.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 633242 + ... + 635798.

Almost surely, 2^1622467640 is an apocalyptic number.

1622467640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1622467640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892408400).

1622467640 is an abundant number, since it is smaller than the sum of its proper divisors (2162349160).

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

1622467640 is a wasteful number, since it uses less digits than its factorization.

1622467640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144 (or 3140 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1622467640 is about 40279.8664347339. The cubic root of 1622467640 is about 1175.0563159971.

The spelling of 1622467640 in words is "one billion, six hundred twenty-two million, four hundred sixty-seven thousand, six hundred forty".