1201383438 has 32 divisors (see below), whose sum is σ = 2545875360. Its totient is φ = 376642560.

The previous prime is 1201383431. The next prime is 1201383439. The reversal of 1201383438 is 8343831021.

It is a junction number, because it is equal to n+sod(n) for n = 1201383399 and 1201383408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201383431) 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, 186658 + ... + 192986.

It is an arithmetic number, because the mean of its divisors is an integer number (79558605).

Almost surely, 2^1201383438 is an apocalyptic number.

1201383438 is an abundant number, since it is smaller than the sum of its proper divisors (1344491922).

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

1201383438 is a wasteful number, since it uses less digits than its factorization.

1201383438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1201383438 is about 34660.9786070734. The cubic root of 1201383438 is about 1063.0667796427.

The spelling of 1201383438 in words is "one billion, two hundred one million, three hundred eighty-three thousand, four hundred thirty-eight".