1918420852 has 24 divisors (see below), whose sum is σ = 3431393280. Its totient is φ = 938236320.

The previous prime is 1918420841. The next prime is 1918420853. The reversal of 1918420852 is 2580248191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918420853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9474 + ... + 62662.

It is an arithmetic number, because the mean of its divisors is an integer number (142974720).

Almost surely, 2^1918420852 is an apocalyptic number.

It is an amenable number.

1918420852 is a deficient number, since it is larger than the sum of its proper divisors (1512972428).

1918420852 is a wasteful number, since it uses less digits than its factorization.

1918420852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53391 (or 53389 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 1918420852 is about 43799.7814149797. The cubic root of 1918420852 is about 1242.5521603091.

The spelling of 1918420852 in words is "one billion, nine hundred eighteen million, four hundred twenty thousand, eight hundred fifty-two".