802621400 has 192 divisors, whose sum is σ = 2253873600. Its totient is φ = 259983360.

The previous prime is 802621399. The next prime is 802621439. The reversal of 802621400 is 4126208.

It is a super-2 number, since 2×802621400² = 1288402223475920000, which contains 22 as substring.

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, 2151614 + ... + 2151986.

It is an arithmetic number, because the mean of its divisors is an integer number (11738925).

Almost surely, 2^802621400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 802621400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126936800).

802621400 is an abundant number, since it is smaller than the sum of its proper divisors (1451252200).

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

802621400 is a wasteful number, since it uses less digits than its factorization.

802621400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 802621400 is about 28330.5735910871. The cubic root of 802621400 is about 929.3306163225.

Adding to 802621400 its reverse (4126208), we get a palindrome (806747608).

The spelling of 802621400 in words is "eight hundred two million, six hundred twenty-one thousand, four hundred".