8404266780 has 576 divisors, whose sum is σ = 33642405888. Its totient is φ = 1713208320.

The previous prime is 8404266737. The next prime is 8404266791. The reversal of 8404266780 is 876624048.

It is a super-3 number, since 3×8404266780³ (a number of 31 digits) contains 333 as substring.

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 191 ways as a sum of consecutive naturals, for example, 13709754 + ... + 13710366.

Almost surely, 2^8404266780 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 8404266780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16821202944).

8404266780 is an abundant number, since it is smaller than the sum of its proper divisors (25238139108).

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

8404266780 is a wasteful number, since it uses less digits than its factorization.

8404266780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 8404266780 is about 91674.7881371972. The cubic root of 8404266780 is about 2033.1368410561.

The spelling of 8404266780 in words is "eight billion, four hundred four million, two hundred sixty-six thousand, seven hundred eighty".