1338553490 has 8 divisors (see below), whose sum is σ = 2409396300. Its totient is φ = 535421392.

The previous prime is 1338553487. The next prime is 1338553499. The reversal of 1338553490 is 943558331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1319360329 + 19193161 = 36323^2 + 4381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1338553499) 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, 66927665 + ... + 66927684.

Almost surely, 2^1338553490 is an apocalyptic number.

1338553490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338553490 is a deficient number, since it is larger than the sum of its proper divisors (1070842810).

1338553490 is a wasteful number, since it uses less digits than its factorization.

1338553490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133855356.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 1338553490 is about 36586.2472795448. The cubic root of 1338553490 is about 1102.0769272925.

The spelling of 1338553490 in words is "one billion, three hundred thirty-eight million, five hundred fifty-three thousand, four hundred ninety".