1338452040 has 64 divisors (see below), whose sum is σ = 4054377600. Its totient is φ = 353452032.

The previous prime is 1338452039. The next prime is 1338452047. The reversal of 1338452040 is 402548331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1338451989 and 1338452007.

It is not an unprimeable number, because it can be changed into a prime (1338452047) 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, 41785 + ... + 66504.

It is an arithmetic number, because the mean of its divisors is an integer number (63349650).

Almost surely, 2^1338452040 is an apocalyptic number.

1338452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338452040 is an abundant number, since it is smaller than the sum of its proper divisors (2715925560).

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

1338452040 is a wasteful number, since it uses less digits than its factorization.

1338452040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108406 (or 108402 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1338452040 is about 36584.8608033432. The cubic root of 1338452040 is about 1102.0490841694.

The spelling of 1338452040 in words is "one billion, three hundred thirty-eight million, four hundred fifty-two thousand, forty".