1069990 has 16 divisors (see below), whose sum is σ = 1955952. Its totient is φ = 421344.

The previous prime is 1069987. The next prime is 1070009. The reversal of 1069990 is 999601.

It is a happy number.

It is a super-2 number, since 2×1069990² = 2289757200200, which contains 22 as substring.

It is a congruent number.

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, 129 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (122247).

2^1069990 is an apocalyptic number.

1069990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1069990 is a deficient number, since it is larger than the sum of its proper divisors (885962).

1069990 is a wasteful number, since it uses less digits than its factorization.

1069990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1069990 is about 1034.4032095851. The cubic root of 1069990 is about 102.2805935438.

The spelling of 1069990 in words is "one million, sixty-nine thousand, nine hundred ninety".