1838080772 has 12 divisors (see below), whose sum is σ = 3509063376. Its totient is φ = 835491240.

The previous prime is 1838080759. The next prime is 1838080787. The reversal of 1838080772 is 2770808381.

It is a super-3 number, since 3×1838080772³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 41774563 = 1838080772 / (1 + 8 + 3 + 8 + 0 + 8 + 0 + 7 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20887238 + ... + 20887325.

It is an arithmetic number, because the mean of its divisors is an integer number (292421948).

Almost surely, 2^1838080772 is an apocalyptic number.

It is an amenable number.

1838080772 is a deficient number, since it is larger than the sum of its proper divisors (1670982604).

1838080772 is a wasteful number, since it uses less digits than its factorization.

1838080772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41774578 (or 41774576 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 1838080772 is about 42872.8442256867. The cubic root of 1838080772 is about 1224.9589372880.

The spelling of 1838080772 in words is "one billion, eight hundred thirty-eight million, eighty thousand, seven hundred seventy-two".