514937640 has 128 divisors (see below), whose sum is σ = 1803202560. Its totient is φ = 115186944.

The previous prime is 514937627. The next prime is 514937671. The reversal of 514937640 is 46739415.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32959 + ... + 46001.

It is an arithmetic number, because the mean of its divisors is an integer number (14087520).

Almost surely, 2^514937640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 514937640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901601280).

514937640 is an abundant number, since it is smaller than the sum of its proper divisors (1288264920).

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

514937640 is a wasteful number, since it uses less digits than its factorization.

514937640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13111 (or 13107 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 514937640 is about 22692.2374392654. The cubic root of 514937640 is about 801.5271039205.

The spelling of 514937640 in words is "five hundred fourteen million, nine hundred thirty-seven thousand, six hundred forty".