1382490864 has 120 divisors (see below), whose sum is σ = 4158282960. Its totient is φ = 427198464.

The previous prime is 1382490839. The next prime is 1382490869. The reversal of 1382490864 is 4680942831.

It is a happy number.

1382490864 is a `hidden beast` number, since 1 + 3 + 82 + 490 + 86 + 4 = 666.

It is a super-2 number, since 2×1382490864² = 3822561978086932992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382490869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159802 + ... + 168230.

It is an arithmetic number, because the mean of its divisors is an integer number (34652358).

Almost surely, 2^1382490864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1382490864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2079141480).

1382490864 is an abundant number, since it is smaller than the sum of its proper divisors (2775792096).

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

1382490864 is a wasteful number, since it uses less digits than its factorization.

1382490864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8527 (or 8518 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1382490864 is about 37181.8620297585. The cubic root of 1382490864 is about 1114.0057265536.

The spelling of 1382490864 in words is "one billion, three hundred eighty-two million, four hundred ninety thousand, eight hundred sixty-four".