497536240 has 20 divisors (see below), whose sum is σ = 1156771944. Its totient is φ = 199014464.

The previous prime is 497536199. The next prime is 497536241. The reversal of 497536240 is 42635794.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×497536240² = 495084620226675200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 497536193 and 497536202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497536241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3109522 + ... + 3109681.

Almost surely, 2^497536240 is an apocalyptic number.

497536240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

497536240 is an abundant number, since it is smaller than the sum of its proper divisors (659235704).

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

497536240 is a wasteful number, since it uses less digits than its factorization.

497536240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6219216 (or 6219210 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 497536240 is about 22305.5203929431. The cubic root of 497536240 is about 792.3947204301.

The spelling of 497536240 in words is "four hundred ninety-seven million, five hundred thirty-six thousand, two hundred forty".