1083900272 has 160 divisors (see below), whose sum is σ = 2697160704. Its totient is φ = 410572800.

The previous prime is 1083900253. The next prime is 1083900283. The reversal of 1083900272 is 2720093801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3999497 + ... + 3999767.

Almost surely, 2^1083900272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1083900272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1348580352).

1083900272 is an abundant number, since it is smaller than the sum of its proper divisors (1613260432).

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

1083900272 is a wasteful number, since it uses less digits than its factorization.

1083900272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1083900272 is about 32922.6407203310. The cubic root of 1083900272 is about 1027.2191529815.

The spelling of 1083900272 in words is "one billion, eighty-three million, nine hundred thousand, two hundred seventy-two".