1385348880 has 80 divisors (see below), whose sum is σ = 4481320320. Its totient is φ = 353362944.

The previous prime is 1385348831. The next prime is 1385348897. The reversal of 1385348880 is 888435831.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 119965 + ... + 131004.

It is an arithmetic number, because the mean of its divisors is an integer number (56016504).

Almost surely, 2^1385348880 is an apocalyptic number.

1385348880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385348880 is an abundant number, since it is smaller than the sum of its proper divisors (3095971440).

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

1385348880 is a wasteful number, since it uses less digits than its factorization.

1385348880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251008 (or 251002 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 1385348880 is about 37220.2751198859. The cubic root of 1385348880 is about 1114.7728575361.

The spelling of 1385348880 in words is "one billion, three hundred eighty-five million, three hundred forty-eight thousand, eight hundred eighty".