514139724 has 120 divisors (see below), whose sum is σ = 1589243040. Its totient is φ = 141813504.

The previous prime is 514139711. The next prime is 514139737. The reversal of 514139724 is 427931415.

514139724 is a `hidden beast` number, since 514 + 139 + 7 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (514139711) and next prime (514139737).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 61864 + ... + 69680.

It is an arithmetic number, because the mean of its divisors is an integer number (13243692).

Almost surely, 2^514139724 is an apocalyptic number.

514139724 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 514139724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794621520).

514139724 is an abundant number, since it is smaller than the sum of its proper divisors (1075103316).

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

514139724 is a wasteful number, since it uses less digits than its factorization.

514139724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869 (or 7858 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 514139724 is about 22674.6493688436. The cubic root of 514139724 is about 801.1128907083.

The spelling of 514139724 in words is "five hundred fourteen million, one hundred thirty-nine thousand, seven hundred twenty-four".