1864377382 has 24 divisors (see below), whose sum is σ = 3285375120. Its totient is φ = 791103600.

The previous prime is 1864377377. The next prime is 1864377391. The reversal of 1864377382 is 2837734681.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

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, 84282 + ... + 104077.

It is an arithmetic number, because the mean of its divisors is an integer number (136890630).

Almost surely, 2^1864377382 is an apocalyptic number.

1864377382 is a deficient number, since it is larger than the sum of its proper divisors (1420997738).

1864377382 is a wasteful number, since it uses less digits than its factorization.

1864377382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188476 (or 188469 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 1864377382 is about 43178.4365395506. The cubic root of 1864377382 is about 1230.7729475302.

The spelling of 1864377382 in words is "one billion, eight hundred sixty-four million, three hundred seventy-seven thousand, three hundred eighty-two".