14406990 has 128 divisors (see below), whose sum is σ = 41150592. Its totient is φ = 3194880.

The previous prime is 14406983. The next prime is 14407013. The reversal of 14406990 is 9960441.

It is a super-2 number, since 2×14406990² = 415122721720200, 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 63 ways as a sum of consecutive naturals, for example, 271804 + ... + 271856.

It is an arithmetic number, because the mean of its divisors is an integer number (321489).

Almost surely, 2^14406990 is an apocalyptic number.

14406990 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 14406990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20575296).

14406990 is an abundant number, since it is smaller than the sum of its proper divisors (26743602).

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

14406990 is a wasteful number, since it uses less digits than its factorization.

14406990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 14406990 is about 3795.6540938289. The cubic root of 14406990 is about 243.3274388180.

The spelling of 14406990 in words is "fourteen million, four hundred six thousand, nine hundred ninety".