1149990 has 16 divisors (see below), whose sum is σ = 2760048. Its totient is φ = 306656.

The previous prime is 1149989. The next prime is 1149991. The reversal of 1149990 is 999411.

It is an interprime number because it is at equal distance from previous prime (1149989) and next prime (1149991).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19137 + ... + 19196.

It is an arithmetic number, because the mean of its divisors is an integer number (172503).

2^1149990 is an apocalyptic number.

1149990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1149990 is an abundant number, since it is smaller than the sum of its proper divisors (1610058).

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

1149990 is a wasteful number, since it uses less digits than its factorization.

1149990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38343.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 1149990 is about 1072.3758669422. The cubic root of 1149990 is about 104.7686516382.

The spelling of 1149990 in words is "one million, one hundred forty-nine thousand, nine hundred ninety".