520311414 has 32 divisors (see below), whose sum is σ = 1207040256. Its totient is φ = 146440800.

The previous prime is 520311377. The next prime is 520311439. The reversal of 520311414 is 414113025.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89637 + ... + 95264.

It is an arithmetic number, because the mean of its divisors is an integer number (37720008).

Almost surely, 2^520311414 is an apocalyptic number.

520311414 is an abundant number, since it is smaller than the sum of its proper divisors (686728842).

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

520311414 is a wasteful number, since it uses less digits than its factorization.

520311414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184980.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 520311414 is about 22810.3356836325. The cubic root of 520311414 is about 804.3056466438.

Adding to 520311414 its reverse (414113025), we get a palindrome (934424439).

The spelling of 520311414 in words is "five hundred twenty million, three hundred eleven thousand, four hundred fourteen".