1378471244 has 6 divisors (see below), whose sum is σ = 2412324684. Its totient is φ = 689235620.

The previous prime is 1378471219. The next prime is 1378471247. The reversal of 1378471244 is 4421748731.

It is not an unprimeable number, because it can be changed into a prime (1378471247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172308902 + ... + 172308909.

It is an arithmetic number, because the mean of its divisors is an integer number (402054114).

Almost surely, 2^1378471244 is an apocalyptic number.

It is an amenable number.

1378471244 is a deficient number, since it is larger than the sum of its proper divisors (1033853440).

1378471244 is a wasteful number, since it uses less digits than its factorization.

1378471244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344617815 (or 344617813 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 1378471244 is about 37127.7691761840. The cubic root of 1378471244 is about 1112.9250137907.

The spelling of 1378471244 in words is "one billion, three hundred seventy-eight million, four hundred seventy-one thousand, two hundred forty-four".