1371828 has 12 divisors (see below), whose sum is σ = 3200960. Its totient is φ = 457272.

The previous prime is 1371827. The next prime is 1371841. The reversal of 1371828 is 8281731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1371795 and 1371804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371827) 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, 57148 + ... + 57171.

2^1371828 is an apocalyptic number.

It is an amenable number.

1371828 is an abundant number, since it is smaller than the sum of its proper divisors (1829132).

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

1371828 is a wasteful number, since it uses less digits than its factorization.

1371828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114326 (or 114324 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 1371828 is about 1171.2506136605. The cubic root of 1371828 is about 111.1134300257.

Subtracting 1371828 from its reverse (8281731), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 1371828 in words is "one million, three hundred seventy-one thousand, eight hundred twenty-eight".