1153284990 has 128 divisors (see below), whose sum is σ = 3423168000. Its totient is φ = 244477440.

The previous prime is 1153284989. The next prime is 1153285019. The reversal of 1153284990 is 994823511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74436 + ... + 88584.

It is an arithmetic number, because the mean of its divisors is an integer number (26743500).

Almost surely, 2^1153284990 is an apocalyptic number.

1153284990 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 1153284990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1711584000).

1153284990 is an abundant number, since it is smaller than the sum of its proper divisors (2269883010).

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

1153284990 is a wasteful number, since it uses less digits than its factorization.

1153284990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14202.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1153284990 is about 33960.0499116241. The cubic root of 1153284990 is about 1048.6861844345.

The spelling of 1153284990 in words is "one billion, one hundred fifty-three million, two hundred eighty-four thousand, nine hundred ninety".