1378420360 has 64 divisors (see below), whose sum is σ = 3406665600. Its totient is φ = 499631616.

The previous prime is 1378420357. The next prime is 1378420391. The reversal of 1378420360 is 630248731.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21949 + ... + 56908.

It is an arithmetic number, because the mean of its divisors is an integer number (53229150).

Almost surely, 2^1378420360 is an apocalyptic number.

1378420360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378420360 is an abundant number, since it is smaller than the sum of its proper divisors (2028245240).

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

1378420360 is a wasteful number, since it uses less digits than its factorization.

1378420360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78910 (or 78906 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1378420360 is about 37127.0839145764. The cubic root of 1378420360 is about 1112.9113196897.

The spelling of 1378420360 in words is "one billion, three hundred seventy-eight million, four hundred twenty thousand, three hundred sixty".