1518428628 has 36 divisors (see below), whose sum is σ = 4005132768. Its totient is φ = 484136400.

The previous prime is 1518428621. The next prime is 1518428683. The reversal of 1518428628 is 8268248151.

1518428628 is a `hidden beast` number, since 1 + 5 + 18 + 4 + 2 + 8 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1518428621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916098 + ... + 917753.

It is an arithmetic number, because the mean of its divisors is an integer number (111253688).

Almost surely, 2^1518428628 is an apocalyptic number.

1518428628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1518428628 is an abundant number, since it is smaller than the sum of its proper divisors (2486704140).

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

1518428628 is a wasteful number, since it uses less digits than its factorization.

1518428628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833884 (or 1833879 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 1518428628 is about 38967.0197474736. The cubic root of 1518428628 is about 1149.3830661977.

The spelling of 1518428628 in words is "one billion, five hundred eighteen million, four hundred twenty-eight thousand, six hundred twenty-eight".