1349138290 has 96 divisors (see below), whose sum is σ = 2676810240. Its totient is φ = 488718720.

The previous prime is 1349138279. The next prime is 1349138299. The reversal of 1349138290 is 928319431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349138299) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13098379 + ... + 13098481.

It is an arithmetic number, because the mean of its divisors is an integer number (27883440).

Almost surely, 2^1349138290 is an apocalyptic number.

1349138290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1349138290 is a deficient number, since it is larger than the sum of its proper divisors (1327671950).

1349138290 is a wasteful number, since it uses less digits than its factorization.

1349138290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1349138290 is about 36730.6178820885. The cubic root of 1349138290 is about 1104.9742464463.

The spelling of 1349138290 in words is "one billion, three hundred forty-nine million, one hundred thirty-eight thousand, two hundred ninety".