1373828 has 12 divisors (see below), whose sum is σ = 2463132. Its totient is φ = 670080.

The previous prime is 1373819. The next prime is 1373839. The reversal of 1373828 is 8283731.

It can be written as a sum of positive squares in 2 ways, for example, as 123904 + 1249924 = 352^2 + 1118^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1373794 and 1373803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4025 + ... + 4352.

It is an arithmetic number, because the mean of its divisors is an integer number (205261).

2^1373828 is an apocalyptic number.

It is an amenable number.

1373828 is a deficient number, since it is larger than the sum of its proper divisors (1089304).

1373828 is a wasteful number, since it uses less digits than its factorization.

1373828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422 (or 8420 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1373828 is about 1172.1040909407. The cubic root of 1373828 is about 111.1674015517.

Subtracting 1373828 from its reverse (8283731), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1373828 in words is "one million, three hundred seventy-three thousand, eight hundred twenty-eight".