1018726144 has 36 divisors (see below), whose sum is σ = 2071867896. Its totient is φ = 499745792.

The previous prime is 1018726141. The next prime is 1018726151. The reversal of 1018726144 is 4416278101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018726141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23974 + ... + 51109.

It is an arithmetic number, because the mean of its divisors is an integer number (57551886).

Almost surely, 2^1018726144 is an apocalyptic number.

It is an amenable number.

1018726144 is an abundant number, since it is smaller than the sum of its proper divisors (1053141752).

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

1018726144 is an frugal number, since it uses more digits than its factorization.

1018726144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75152 (or 75138 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 1018726144 is about 31917.4896255956. The cubic root of 1018726144 is about 1006.2034851947.

The spelling of 1018726144 in words is "one billion, eighteen million, seven hundred twenty-six thousand, one hundred forty-four".