497199720 has 32 divisors (see below), whose sum is σ = 1491599520. Its totient is φ = 132586560.

The previous prime is 497199719. The next prime is 497199727. The reversal of 497199720 is 27991794.

It is a happy number.

It is a super-4 number, since 4×497199720⁴ (a number of 36 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 497199720.

It is not an unprimeable number, because it can be changed into a prime (497199727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071546 + ... + 2071785.

It is an arithmetic number, because the mean of its divisors is an integer number (46612485).

Almost surely, 2^497199720 is an apocalyptic number.

497199720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497199720 is an abundant number, since it is smaller than the sum of its proper divisors (994399800).

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

497199720 is a wasteful number, since it uses less digits than its factorization.

497199720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143345 (or 4143341 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 497199720 is about 22297.9756928740. The cubic root of 497199720 is about 792.2160287140.

The spelling of 497199720 in words is "four hundred ninety-seven million, one hundred ninety-nine thousand, seven hundred twenty".