14643690 has 32 divisors (see below), whose sum is σ = 35574336. Its totient is φ = 3857280.

The previous prime is 14643659. The next prime is 14643697. The reversal of 14643690 is 9634641.

It is a super-2 number, since 2×14643690² = 428875313632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14643697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451 + ... + 5430.

It is an arithmetic number, because the mean of its divisors is an integer number (1111698).

Almost surely, 2^14643690 is an apocalyptic number.

14643690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14643690 is an abundant number, since it is smaller than the sum of its proper divisors (20930646).

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

14643690 is a wasteful number, since it uses less digits than its factorization.

14643690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5974.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 14643690 is about 3826.7074620357. The cubic root of 14643690 is about 244.6527915306.

The spelling of 14643690 in words is "fourteen million, six hundred forty-three thousand, six hundred ninety".