302041421 has 4 divisors (see below), whose sum is σ = 329499744. Its totient is φ = 274583100.

The previous prime is 302041403. The next prime is 302041459. The reversal of 302041421 is 124140203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124140203 = 11 ⋅11285473.

It is not a de Polignac number, because 302041421 - 2²² = 297847117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302041421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302041021) 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, 13729145 + ... + 13729166.

It is an arithmetic number, because the mean of its divisors is an integer number (82374936).

Almost surely, 2^302041421 is an apocalyptic number.

It is an amenable number.

302041421 is a deficient number, since it is larger than the sum of its proper divisors (27458323).

302041421 is a wasteful number, since it uses less digits than its factorization.

302041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27458322.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 302041421 is about 17379.3389114776. The cubic root of 302041421 is about 670.9479571667.

Adding to 302041421 its reverse (124140203), we get a palindrome (426181624).

The spelling of 302041421 in words is "three hundred two million, forty-one thousand, four hundred twenty-one".