1379489748 has 240 divisors, whose sum is σ = 4216289280. Its totient is φ = 348509952.

The previous prime is 1379489747. The next prime is 1379489767. The reversal of 1379489748 is 8479849731.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1379489691 and 1379489700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379489747) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10862061 + ... + 10862187.

It is an arithmetic number, because the mean of its divisors is an integer number (17567872).

Almost surely, 2^1379489748 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 1379489748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108144640).

1379489748 is an abundant number, since it is smaller than the sum of its proper divisors (2836799532).

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

1379489748 is a wasteful number, since it uses less digits than its factorization.

1379489748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 181 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The square root of 1379489748 is about 37141.4828460039. The cubic root of 1379489748 is about 1113.1990467155.

It can be divided in two parts, 137948 and 9748, that added together give a triangular number (147696 = T₅₄₃).

The spelling of 1379489748 in words is "one billion, three hundred seventy-nine million, four hundred eighty-nine thousand, seven hundred forty-eight".