1380553446 has 16 divisors (see below), whose sum is σ = 2788445808. Its totient is φ = 455628000.

The previous prime is 1380553441. The next prime is 1380553453. The reversal of 1380553446 is 6443550831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380553441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138465 + ... + 1139676.

It is an arithmetic number, because the mean of its divisors is an integer number (174277863).

Almost surely, 2^1380553446 is an apocalyptic number.

1380553446 is an abundant number, since it is smaller than the sum of its proper divisors (1407892362).

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

1380553446 is a wasteful number, since it uses less digits than its factorization.

1380553446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278247.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 1380553446 is about 37155.7996280527. The cubic root of 1380553446 is about 1113.4850953274.

The spelling of 1380553446 in words is "one billion, three hundred eighty million, five hundred fifty-three thousand, four hundred forty-six".