1378418574 has 48 divisors (see below), whose sum is σ = 3133447632. Its totient is φ = 401798016.

The previous prime is 1378418563. The next prime is 1378418581. The reversal of 1378418574 is 4758148731.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3682 + ... + 52634.

It is an arithmetic number, because the mean of its divisors is an integer number (65280159).

Almost surely, 2^1378418574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378418574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566723816).

1378418574 is an abundant number, since it is smaller than the sum of its proper divisors (1755029058).

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

1378418574 is a wasteful number, since it uses less digits than its factorization.

1378418574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49009 (or 48990 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 1378418574 is about 37127.0598620467. The cubic root of 1378418574 is about 1112.9108390283.

The spelling of 1378418574 in words is "one billion, three hundred seventy-eight million, four hundred eighteen thousand, five hundred seventy-four".