18757412 has 6 divisors (see below), whose sum is σ = 32825478. Its totient is φ = 9378704.

The previous prime is 18757411. The next prime is 18757429. The reversal of 18757412 is 21475781.

It can be written as a sum of positive squares in only one way, i.e., 17355556 + 1401856 = 4166^2 + 1184^2 .

It is not an unprimeable number, because it can be changed into a prime (18757411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344673 + ... + 2344680.

It is an arithmetic number, because the mean of its divisors is an integer number (5470913).

Almost surely, 2^18757412 is an apocalyptic number.

It is an amenable number.

18757412 is a deficient number, since it is larger than the sum of its proper divisors (14068066).

18757412 is a wasteful number, since it uses less digits than its factorization.

18757412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689357 (or 4689355 counting only the distinct ones).

The product of its digits is 15680, while the sum is 35.

The square root of 18757412 is about 4330.9827983958. The cubic root of 18757412 is about 265.6996440187.

The spelling of 18757412 in words is "eighteen million, seven hundred fifty-seven thousand, four hundred twelve".