1372880 has 30 divisors (see below), whose sum is σ = 3216498. Its totient is φ = 544960.

The previous prime is 1372879. The next prime is 1372913. The reversal of 1372880 is 882731.

It can be written as a sum of positive squares in only one way, i.e., 1098304 + 274576 = 1048^2 + 524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10415 + ... + 10545.

2^1372880 is an apocalyptic number.

1372880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1372880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608249).

1372880 is an abundant number, since it is smaller than the sum of its proper divisors (1843618).

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

1372880 is an equidigital number, since it uses as much as digits as its factorization.

1372880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1372880 is about 1171.6996202099. The cubic root of 1372880 is about 111.1418255829.

The spelling of 1372880 in words is "one million, three hundred seventy-two thousand, eight hundred eighty".