1820948724 has 36 divisors (see below), whose sum is σ = 5260519264. Its totient is φ = 520270992.

The previous prime is 1820948707. The next prime is 1820948741. The reversal of 1820948724 is 4278490281.

1820948724 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1820948707) and next prime (1820948741).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1820948724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3612742 + ... + 3613245.

Almost surely, 2^1820948724 is an apocalyptic number.

1820948724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1820948724 is an abundant number, since it is smaller than the sum of its proper divisors (3439570540).

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

1820948724 is a wasteful number, since it uses less digits than its factorization.

1820948724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226004 (or 7225999 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1820948724 is about 42672.5757835170. The cubic root of 1820948724 is about 1221.1412602918.

The spelling of 1820948724 in words is "one billion, eight hundred twenty million, nine hundred forty-eight thousand, seven hundred twenty-four".