1381044490 has 32 divisors (see below), whose sum is σ = 2859842304. Its totient is φ = 470361600.

The previous prime is 1381044481. The next prime is 1381044491. The reversal of 1381044490 is 944401831.

It is not an unprimeable number, because it can be changed into a prime (1381044491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54759 + ... + 75898.

It is an arithmetic number, because the mean of its divisors is an integer number (89370072).

Almost surely, 2^1381044490 is an apocalyptic number.

1381044490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381044490 is an abundant number, since it is smaller than the sum of its proper divisors (1478797814).

1381044490 is a wasteful number, since it uses less digits than its factorization.

1381044490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130822.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1381044490 is about 37162.4069457294. The cubic root of 1381044490 is about 1113.6170968237.

The spelling of 1381044490 in words is "one billion, three hundred eighty-one million, forty-four thousand, four hundred ninety".