14457021 has 16 divisors (see below), whose sum is σ = 20507904. Its totient is φ = 9027584.

The previous prime is 14457019. The next prime is 14457049. The reversal of 14457021 is 12075441.

It is a cyclic number.

It is not a de Polignac number, because 14457021 - 2¹ = 14457019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14456982 and 14457000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14457011) 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, 12556 + ... + 13658.

It is an arithmetic number, because the mean of its divisors is an integer number (1281744).

Almost surely, 2^14457021 is an apocalyptic number.

It is an amenable number.

14457021 is a deficient number, since it is larger than the sum of its proper divisors (6050883).

14457021 is a wasteful number, since it uses less digits than its factorization.

14457021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 14457021 is about 3802.2389456740. The cubic root of 14457021 is about 243.6087802627.

The spelling of 14457021 in words is "fourteen million, four hundred fifty-seven thousand, twenty-one".