1378520160 has 48 divisors (see below), whose sum is σ = 4342340016. Its totient is φ = 367605248.

The previous prime is 1378520159. The next prime is 1378520161. The reversal of 1378520160 is 610258731.

It is an interprime number because it is at equal distance from previous prime (1378520159) and next prime (1378520161).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-4 number, since 4×1378520160⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378520161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435479 + ... + 1436438.

It is an arithmetic number, because the mean of its divisors is an integer number (90465417).

Almost surely, 2^1378520160 is an apocalyptic number.

1378520160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378520160 is an abundant number, since it is smaller than the sum of its proper divisors (2963819856).

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

1378520160 is a wasteful number, since it uses less digits than its factorization.

1378520160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871935 (or 2871927 counting only the distinct ones).

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

The square root of 1378520160 is about 37128.4279225501. The cubic root of 1378520160 is about 1112.9381779381.

Adding to 1378520160 its reverse (610258731), we get a palindrome (1988778891).

The spelling of 1378520160 in words is "one billion, three hundred seventy-eight million, five hundred twenty thousand, one hundred sixty".