1015782972 has 12 divisors (see below), whose sum is σ = 2370160296. Its totient is φ = 338594320.

The previous prime is 1015782953. The next prime is 1015782979. The reversal of 1015782972 is 2792875101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015782979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42324279 + ... + 42324302.

It is an arithmetic number, because the mean of its divisors is an integer number (197513358).

Almost surely, 2^1015782972 is an apocalyptic number.

1015782972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1015782972 is an abundant number, since it is smaller than the sum of its proper divisors (1354377324).

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

1015782972 is a wasteful number, since it uses less digits than its factorization.

1015782972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84648588 (or 84648586 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 1015782972 is about 31871.3503322341. The cubic root of 1015782972 is about 1005.2335528092.

The spelling of 1015782972 in words is "one billion, fifteen million, seven hundred eighty-two thousand, nine hundred seventy-two".