2029451 has 4 divisors (see below), whose sum is σ = 2117712. Its totient is φ = 1941192.

The previous prime is 2029441. The next prime is 2029453. The reversal of 2029451 is 1549202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1549202 = 2 ⋅774601.

It is a cyclic number.

It is not a de Polignac number, because 2029451 - 2⁶ = 2029387 is a prime.

It is a super-2 number, since 2×2029451² = 8237342722802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 88237 = 2029451 / (2 + 0 + 2 + 9 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44096 + ... + 44141.

It is an arithmetic number, because the mean of its divisors is an integer number (529428).

2^2029451 is an apocalyptic number.

2029451 is a deficient number, since it is larger than the sum of its proper divisors (88261).

2029451 is an equidigital number, since it uses as much as digits as its factorization.

2029451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88260.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2029451 is about 1424.5880106192. The cubic root of 2029451 is about 126.6075262545.

Subtracting from 2029451 its reverse (1549202), we obtain a square (480249 = 693²).

The spelling of 2029451 in words is "two million, twenty-nine thousand, four hundred fifty-one".