1080377900 has 72 divisors (see below), whose sum is σ = 2765822976. Its totient is φ = 358459200.

The previous prime is 1080377899. The next prime is 1080377923. The reversal of 1080377900 is 97730801.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3194 + ... + 46593.

It is an arithmetic number, because the mean of its divisors is an integer number (38414208).

Almost surely, 2^1080377900 is an apocalyptic number.

1080377900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1080377900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382911488).

1080377900 is an abundant number, since it is smaller than the sum of its proper divisors (1685445076).

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

1080377900 is a wasteful number, since it uses less digits than its factorization.

1080377900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49839 (or 49832 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1080377900 is about 32869.1025128463. The cubic root of 1080377900 is about 1026.1052207014.

The spelling of 1080377900 in words is "one billion, eighty million, three hundred seventy-seven thousand, nine hundred".