1338674940 has 36 divisors (see below), whose sum is σ = 4060647864. Its totient is φ = 356979936.

The previous prime is 1338674933. The next prime is 1338674977. The reversal of 1338674940 is 494768331.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3718362 + ... + 3718721.

It is an arithmetic number, because the mean of its divisors is an integer number (112795774).

Almost surely, 2^1338674940 is an apocalyptic number.

1338674940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338674940 is an abundant number, since it is smaller than the sum of its proper divisors (2721972924).

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

1338674940 is a wasteful number, since it uses less digits than its factorization.

1338674940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437098 (or 7437093 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 1338674940 is about 36587.9070185765. The cubic root of 1338674940 is about 1102.1102575992.

The spelling of 1338674940 in words is "one billion, three hundred thirty-eight million, six hundred seventy-four thousand, nine hundred forty".