655404480 has 224 divisors, whose sum is σ = 2387681280. Its totient is φ = 169067520.

The previous prime is 655404469. The next prime is 655404523. The reversal of 655404480 is 84404556.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266617 + ... + 269063.

Almost surely, 2^655404480 is an apocalyptic number.

655404480 is a gapful number since it is divisible by the number (60) 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 655404480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1193840640).

655404480 is an abundant number, since it is smaller than the sum of its proper divisors (1732276800).

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

655404480 is a wasteful number, since it uses less digits than its factorization.

655404480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2488 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 655404480 is about 25600.8687352597. The cubic root of 655404480 is about 868.6332881183.

The spelling of 655404480 in words is "six hundred fifty-five million, four hundred four thousand, four hundred eighty".