1152090 has 64 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 288000.

The previous prime is 1152079. The next prime is 1152091. The reversal of 1152090 is 902511.

It is a super-2 number, since 2×1152090² = 2654622736200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1152091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4465 + ... + 4715.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2^1152090 is an apocalyptic number.

1152090 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 1152090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632960).

1152090 is an abundant number, since it is smaller than the sum of its proper divisors (2113830).

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

1152090 is a wasteful number, since it uses less digits than its factorization.

1152090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1152090 is about 1073.3545546556. The cubic root of 1152090 is about 104.8323856362.

The spelling of 1152090 in words is "one million, one hundred fifty-two thousand, ninety".