1338150890 has 32 divisors (see below), whose sum is σ = 2479513680. Its totient is φ = 519727104.

The previous prime is 1338150887. The next prime is 1338150893. The reversal of 1338150890 is 980518331.

It is an interprime number because it is at equal distance from previous prime (1338150887) and next prime (1338150893).

It can be written as a sum of positive squares in 8 ways, for example, as 320732281 + 1017418609 = 17909^2 + 31897^2 .

It is not an unprimeable number, because it can be changed into a prime (1338150893) 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, 38396 + ... + 64424.

Almost surely, 2^1338150890 is an apocalyptic number.

1338150890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1338150890 is a deficient number, since it is larger than the sum of its proper divisors (1141362790).

1338150890 is a wasteful number, since it uses less digits than its factorization.

1338150890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26186.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1338150890 is about 36580.7447983225. The cubic root of 1338150890 is about 1101.9664247574.

The spelling of 1338150890 in words is "one billion, three hundred thirty-eight million, one hundred fifty thousand, eight hundred ninety".