1378576 has 10 divisors (see below), whose sum is σ = 2671022. Its totient is φ = 689280.

The previous prime is 1378567. The next prime is 1378579. The reversal of 1378576 is 6758731.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 456976 = 960^2 + 676^2 .

It is not an unprimeable number, because it can be changed into a prime (1378579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43065 + ... + 43096.

2^1378576 is an apocalyptic number.

1378576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1378576 is a deficient number, since it is larger than the sum of its proper divisors (1292446).

1378576 is an equidigital number, since it uses as much as digits as its factorization.

1378576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86169 (or 86163 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 1378576 is about 1174.1277613616. The cubic root of 1378576 is about 111.2953205074.

It can be divided in two parts, 13785 and 76, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 1378576 in words is "one million, three hundred seventy-eight thousand, five hundred seventy-six".