1623056340 has 96 divisors (see below), whose sum is σ = 4816143360. Its totient is φ = 407680000.

The previous prime is 1623056339. The next prime is 1623056389. The reversal of 1623056340 is 436503261.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1623056298 and 1623056307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59965 + ... + 82715.

It is an arithmetic number, because the mean of its divisors is an integer number (50168160).

Almost surely, 2^1623056340 is an apocalyptic number.

1623056340 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 1623056340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2408071680).

1623056340 is an abundant number, since it is smaller than the sum of its proper divisors (3193087020).

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

1623056340 is a wasteful number, since it uses less digits than its factorization.

1623056340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22833 (or 22831 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1623056340 is about 40287.1733930292. The cubic root of 1623056340 is about 1175.1984188834.

The spelling of 1623056340 in words is "one billion, six hundred twenty-three million, fifty-six thousand, three hundred forty".