520161378 has 32 divisors (see below), whose sum is σ = 1140867072. Its totient is φ = 156795600.

The previous prime is 520161377. The next prime is 520161379. The reversal of 520161378 is 873161025.

It is an interprime number because it is at equal distance from previous prime (520161377) and next prime (520161379).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (520161377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8026 + ... + 33237.

It is an arithmetic number, because the mean of its divisors is an integer number (35652096).

Almost surely, 2^520161378 is an apocalyptic number.

520161378 is an abundant number, since it is smaller than the sum of its proper divisors (620705694).

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

520161378 is a wasteful number, since it uses less digits than its factorization.

520161378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41470.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 520161378 is about 22807.0466742189. The cubic root of 520161378 is about 804.2283298679.

The spelling of 520161378 in words is "five hundred twenty million, one hundred sixty-one thousand, three hundred seventy-eight".