1378372 has 12 divisors (see below), whose sum is σ = 2420460. Its totient is φ = 686816.

The previous prime is 1378339. The next prime is 1378373. The reversal of 1378372 is 2738731.

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 92416 = 1134^2 + 304^2 .

It is not an unprimeable number, because it can be changed into a prime (1378373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1698 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (201705).

2^1378372 is an apocalyptic number.

It is an amenable number.

1378372 is a deficient number, since it is larger than the sum of its proper divisors (1042088).

1378372 is a wasteful number, since it uses less digits than its factorization.

1378372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 1378372 is about 1174.0408851484. The cubic root of 1378372 is about 111.2898304545.

The spelling of 1378372 in words is "one million, three hundred seventy-eight thousand, three hundred seventy-two".