497621880 has 320 divisors, whose sum is σ = 1966472640. Its totient is φ = 110481408.

The previous prime is 497621867. The next prime is 497621893. The reversal of 497621880 is 88126794.

It is an interprime number because it is at equal distance from previous prime (497621867) and next prime (497621893).

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 79 ways as a sum of consecutive naturals, for example, 838864 + ... + 839456.

It is an arithmetic number, because the mean of its divisors is an integer number (6145227).

Almost surely, 2^497621880 is an apocalyptic number.

497621880 is a gapful number since it is divisible by the number (40) 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 497621880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983236320).

497621880 is an abundant number, since it is smaller than the sum of its proper divisors (1468850760).

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

497621880 is a wasteful number, since it uses less digits than its factorization.

497621880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 497621880 is about 22307.4400144884. The cubic root of 497621880 is about 792.4401823049.

It can be divided in two parts, 497621 and 880, that added together give a triangular number (498501 = T₉₉₈).

The spelling of 497621880 in words is "four hundred ninety-seven million, six hundred twenty-one thousand, eight hundred eighty".