1622999040 has 272 divisors, whose sum is σ = 5637101568. Its totient is φ = 396361728.

The previous prime is 1622998967. The next prime is 1622999041. The reversal of 1622999040 is 409992261.

It is a junction number, because it is equal to n+sod(n) for n = 1622998983 and 1622999001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622999041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12779457 + ... + 12779583.

Almost surely, 2^1622999040 is an apocalyptic number.

1622999040 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 1622999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2818550784).

1622999040 is an abundant number, since it is smaller than the sum of its proper divisors (4014102528).

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

1622999040 is an equidigital number, since it uses as much as digits as its factorization.

1622999040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1622999040 is about 40286.4622422967. The cubic root of 1622999040 is about 1175.1845890776.

The spelling of 1622999040 in words is "one billion, six hundred twenty-two million, nine hundred ninety-nine thousand, forty".