1500972228 has 96 divisors (see below), whose sum is σ = 4708972800. Its totient is φ = 403619328.

The previous prime is 1500972223. The next prime is 1500972251. The reversal of 1500972228 is 8222790051.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1500972192 and 1500972201.

It is not an unprimeable number, because it can be changed into a prime (1500972223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45543 + ... + 71246.

It is an arithmetic number, because the mean of its divisors is an integer number (49051800).

Almost surely, 2^1500972228 is an apocalyptic number.

1500972228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1500972228 is an abundant number, since it is smaller than the sum of its proper divisors (3208000572).

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

1500972228 is a wasteful number, since it uses less digits than its factorization.

1500972228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116826 (or 116818 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 1500972228 is about 38742.3828384368. The cubic root of 1500972228 is about 1144.9615054150.

The spelling of 1500972228 in words is "one billion, five hundred million, nine hundred seventy-two thousand, two hundred twenty-eight".