1500378828 has 24 divisors (see below), whose sum is σ = 3770183088. Its totient is φ = 461654976.

The previous prime is 1500378779. The next prime is 1500378839. The reversal of 1500378828 is 8288730051.

It is a happy number.

It is a super-2 number, since 2×1500378828² = 4502273255021307168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1500378828.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4808751 + ... + 4809062.

It is an arithmetic number, because the mean of its divisors is an integer number (157090962).

Almost surely, 2^1500378828 is an apocalyptic number.

It is an amenable number.

1500378828 is an abundant number, since it is smaller than the sum of its proper divisors (2269804260).

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

1500378828 is a wasteful number, since it uses less digits than its factorization.

1500378828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9617833 (or 9617831 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1500378828 is about 38734.7238017776. The cubic root of 1500378828 is about 1144.8106010657.

The spelling of 1500378828 in words is "one billion, five hundred million, three hundred seventy-eight thousand, eight hundred twenty-eight".