1500252780 has 48 divisors (see below), whose sum is σ = 4523841504. Its totient is φ = 369292800.

The previous prime is 1500252751. The next prime is 1500252847. The reversal of 1500252780 is 872520051.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960921 + ... + 962480.

It is an arithmetic number, because the mean of its divisors is an integer number (94246698).

Almost surely, 2^1500252780 is an apocalyptic number.

1500252780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1500252780 is an abundant number, since it is smaller than the sum of its proper divisors (3023588724).

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

1500252780 is a wasteful number, since it uses less digits than its factorization.

1500252780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923426 (or 1923424 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1500252780 is about 38733.0967003672. The cubic root of 1500252780 is about 1144.7785413563.

The spelling of 1500252780 in words is "one billion, five hundred million, two hundred fifty-two thousand, seven hundred eighty".