497351520 has 144 divisors (see below), whose sum is σ = 1702995840. Its totient is φ = 132175872.

The previous prime is 497351513. The next prime is 497351527. The reversal of 497351520 is 25153794.

It is an interprime number because it is at equal distance from previous prime (497351513) and next prime (497351527).

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497351527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819057 + ... + 819663.

It is an arithmetic number, because the mean of its divisors is an integer number (11826360).

Almost surely, 2^497351520 is an apocalyptic number.

497351520 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 497351520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851497920).

497351520 is an abundant number, since it is smaller than the sum of its proper divisors (1205644320).

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

497351520 is a wasteful number, since it uses less digits than its factorization.

497351520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 497351520 is about 22301.3793295392. The cubic root of 497351520 is about 792.2966443109.

The spelling of 497351520 in words is "four hundred ninety-seven million, three hundred fifty-one thousand, five hundred twenty".