1802339942400 has 816 divisors, whose sum is σ = 6716958837120. Its totient is φ = 479668469760.

The previous prime is 1802339942399. The next prime is 1802339942437. The reversal of 1802339942400 is 42499332081.

1802339942400 is a `hidden beast` number, since 1 + 8 + 0 + 233 + 9 + 9 + 4 + 2 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3583180549 + ... + 3583181051.

Almost surely, 2^{1802339942400} is an apocalyptic number.

1802339942400 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 1802339942400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3358479418560).

1802339942400 is an abundant number, since it is smaller than the sum of its proper divisors (4914618894720).

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

1802339942400 is an frugal number, since it uses more digits than its factorization.

1802339942400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 1802339942400 in words is "one trillion, eight hundred two billion, three hundred thirty-nine million, nine hundred forty-two thousand, four hundred".