1863261948 has 48 divisors (see below), whose sum is σ = 4762104480. Its totient is φ = 564393984.

The previous prime is 1863261943. The next prime is 1863261971. The reversal of 1863261948 is 8491623681.

It is a junction number, because it is equal to n+sod(n) for n = 1863261897 and 1863261906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863261943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151561 + ... + 163392.

It is an arithmetic number, because the mean of its divisors is an integer number (99210510).

Almost surely, 2^1863261948 is an apocalyptic number.

It is an amenable number.

1863261948 is an abundant number, since it is smaller than the sum of its proper divisors (2898842532).

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

1863261948 is a wasteful number, since it uses less digits than its factorization.

1863261948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315006 (or 315004 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1863261948 is about 43165.5180439202. The cubic root of 1863261948 is about 1230.5274464706.

The spelling of 1863261948 in words is "one billion, eight hundred sixty-three million, two hundred sixty-one thousand, nine hundred forty-eight".