501453640 has 32 divisors (see below), whose sum is σ = 1128919680. Its totient is φ = 200466112.

The previous prime is 501453629. The next prime is 501453647. The reversal of 501453640 is 46354105.

It is a junction number, because it is equal to n+sod(n) for n = 501453599 and 501453608.

It is not an unprimeable number, because it can be changed into a prime (501453647) 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, 114939 + ... + 119221.

It is an arithmetic number, because the mean of its divisors is an integer number (35278740).

Almost surely, 2^501453640 is an apocalyptic number.

It is an amenable number.

501453640 is an abundant number, since it is smaller than the sum of its proper divisors (627466040).

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

501453640 is a wasteful number, since it uses less digits than its factorization.

501453640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 501453640 is about 22393.1605629933. The cubic root of 501453640 is about 794.4689516767.

The spelling of 501453640 in words is "five hundred one million, four hundred fifty-three thousand, six hundred forty".