1380464 has 30 divisors (see below), whose sum is σ = 2834640. Its totient is φ = 651168.

The previous prime is 1380443. The next prime is 1380469. The reversal of 1380464 is 4640831.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5657 + ... + 5895.

It is an arithmetic number, because the mean of its divisors is an integer number (94488).

2^1380464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417320).

1380464 is an abundant number, since it is smaller than the sum of its proper divisors (1454176).

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

1380464 is a wasteful number, since it uses less digits than its factorization.

1380464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1380464 is about 1174.9314873643. The cubic root of 1380464 is about 111.3461047257.

The spelling of 1380464 in words is "one million, three hundred eighty thousand, four hundred sixty-four".