1802623216 has 40 divisors (see below), whose sum is σ = 3648766464. Its totient is φ = 861708480.

The previous prime is 1802623211. The next prime is 1802623219. The reversal of 1802623216 is 6123262081.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1802623211) 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 7 ways as a sum of consecutive naturals, for example, 19275 + ... + 63061.

Almost surely, 2^1802623216 is an apocalyptic number.

1802623216 is a gapful number since it is divisible by the number (16) 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 1802623216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1824383232).

1802623216 is an abundant number, since it is smaller than the sum of its proper divisors (1846143248).

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

1802623216 is a wasteful number, since it uses less digits than its factorization.

1802623216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43909 (or 43903 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1802623216 is about 42457.3105130318. The cubic root of 1802623216 is about 1217.0310356058.

Adding to 1802623216 its reverse (6123262081), we get a palindrome (7925885297).

The spelling of 1802623216 in words is "one billion, eight hundred two million, six hundred twenty-three thousand, two hundred sixteen".