1164890 has 16 divisors (see below), whose sum is σ = 2207520. Its totient is φ = 441360.

The previous prime is 1164869. The next prime is 1164899. The reversal of 1164890 is 984611.

It is not an unprimeable number, because it can be changed into a prime (1164899) 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, 2876 + ... + 3255.

It is an arithmetic number, because the mean of its divisors is an integer number (137970).

2^1164890 is an apocalyptic number.

1164890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1164890 is a deficient number, since it is larger than the sum of its proper divisors (1042630).

1164890 is a wasteful number, since it uses less digits than its factorization.

1164890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1164890 is about 1079.3006995272. The cubic root of 1164890 is about 105.2191944042.

The spelling of 1164890 in words is "one million, one hundred sixty-four thousand, eight hundred ninety".