1918492532 has 12 divisors (see below), whose sum is σ = 3662576736. Its totient is φ = 872042040.

The previous prime is 1918492531. The next prime is 1918492549. The reversal of 1918492532 is 2352948191.

It is a super-2 number, since 2×1918492532² = 7361227190679542048, which contains 22 as substring.

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: 43602103 = 1918492532 / (1 + 9 + 1 + 8 + 4 + 9 + 2 + 5 + 3 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918492531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21801008 + ... + 21801095.

It is an arithmetic number, because the mean of its divisors is an integer number (305214728).

Almost surely, 2^1918492532 is an apocalyptic number.

It is an amenable number.

1918492532 is a deficient number, since it is larger than the sum of its proper divisors (1744084204).

1918492532 is a wasteful number, since it uses less digits than its factorization.

1918492532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43602118 (or 43602116 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 1918492532 is about 43800.5996762601. The cubic root of 1918492532 is about 1242.5676357159.

The spelling of 1918492532 in words is "one billion, nine hundred eighteen million, four hundred ninety-two thousand, five hundred thirty-two".