1865380948 has 24 divisors (see below), whose sum is σ = 3309082560. Its totient is φ = 920008320.

The previous prime is 1865380931. The next prime is 1865380967. The reversal of 1865380948 is 8490835681.

It is a super-2 number, since 2×1865380948² = 6959292162322757408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1865380895 and 1865380904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85593 + ... + 105151.

It is an arithmetic number, because the mean of its divisors is an integer number (137878440).

Almost surely, 2^1865380948 is an apocalyptic number.

It is an amenable number.

1865380948 is a deficient number, since it is larger than the sum of its proper divisors (1443701612).

1865380948 is a wasteful number, since it uses less digits than its factorization.

1865380948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19887 (or 19885 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The square root of 1865380948 is about 43190.0561240663. The cubic root of 1865380948 is about 1230.9937433732.

The spelling of 1865380948 in words is "one billion, eight hundred sixty-five million, three hundred eighty thousand, nine hundred forty-eight".