1806274932 has 144 divisors (see below), whose sum is σ = 5371140096. Its totient is φ = 462369600.

The previous prime is 1806274931. The next prime is 1806274933. The reversal of 1806274932 is 2394726081.

It is an interprime number because it is at equal distance from previous prime (1806274931) and next prime (1806274933).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806274931) 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, 720393 + ... + 722895.

It is an arithmetic number, because the mean of its divisors is an integer number (37299584).

Almost surely, 2^1806274932 is an apocalyptic number.

1806274932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1806274932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685570048).

1806274932 is an abundant number, since it is smaller than the sum of its proper divisors (3564865164).

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

1806274932 is a wasteful number, since it uses less digits than its factorization.

1806274932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610 (or 2597 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1806274932 is about 42500.2933166349. The cubic root of 1806274932 is about 1217.8522932070.

The spelling of 1806274932 in words is "one billion, eight hundred six million, two hundred seventy-four thousand, nine hundred thirty-two".