501073840 has 40 divisors (see below), whose sum is σ = 1192097808. Its totient is φ = 195767040.

The previous prime is 501073829. The next prime is 501073927. The reversal of 501073840 is 48370105.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 501073799 and 501073808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69391 + ... + 76270.

Almost surely, 2^501073840 is an apocalyptic number.

It is an amenable number.

501073840 is an abundant number, since it is smaller than the sum of its proper divisors (691023968).

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

501073840 is a wasteful number, since it uses less digits than its factorization.

501073840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145717 (or 145711 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 501073840 is about 22384.6786887818. The cubic root of 501073840 is about 794.2683246099.

The spelling of 501073840 in words is "five hundred one million, seventy-three thousand, eight hundred forty".