1129290 has 16 divisors (see below), whose sum is σ = 2710368. Its totient is φ = 301136.

The previous prime is 1129283. The next prime is 1129307. The reversal of 1129290 is 929211.

1129290 = T₃₂₆ + T₃₂₇ + ... + T₃₄₅.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18792 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (169398).

2^1129290 is an apocalyptic number.

1129290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129290 is an abundant number, since it is smaller than the sum of its proper divisors (1581078).

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

1129290 is a wasteful number, since it uses less digits than its factorization.

1129290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37653.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1129290 is about 1062.6805728910. The cubic root of 1129290 is about 104.1362243487.

The spelling of 1129290 in words is "one million, one hundred twenty-nine thousand, two hundred ninety".