1083478590 has 96 divisors (see below), whose sum is σ = 2856803040. Its totient is φ = 284884992.

The previous prime is 1083478589. The next prime is 1083478603. The reversal of 1083478590 is 958743801.

1083478590 is a `hidden beast` number, since 10 + 8 + 3 + 47 + 8 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3214902 + ... + 3215238.

It is an arithmetic number, because the mean of its divisors is an integer number (29758365).

Almost surely, 2^1083478590 is an apocalyptic number.

1083478590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1083478590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428401520).

1083478590 is an abundant number, since it is smaller than the sum of its proper divisors (1773324450).

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

1083478590 is a wasteful number, since it uses less digits than its factorization.

1083478590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1083478590 is about 32916.2359634269. The cubic root of 1083478590 is about 1027.0859254689.

The spelling of 1083478590 in words is "one billion, eighty-three million, four hundred seventy-eight thousand, five hundred ninety".