456247421 has 16 divisors (see below), whose sum is σ = 530987520. Its totient is φ = 383937840.

The previous prime is 456247397. The next prime is 456247423. The reversal of 456247421 is 124742654.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 456247421 - 2¹⁰ = 456246397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456247423) 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, 153770 + ... + 156708.

It is an arithmetic number, because the mean of its divisors is an integer number (33186720).

Almost surely, 2^456247421 is an apocalyptic number.

It is an amenable number.

456247421 is a deficient number, since it is larger than the sum of its proper divisors (74740099).

456247421 is a wasteful number, since it uses less digits than its factorization.

456247421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344.

The product of its digits is 53760, while the sum is 35.

The square root of 456247421 is about 21359.9489933848. The cubic root of 456247421 is about 769.8394116110.

The spelling of 456247421 in words is "four hundred fifty-six million, two hundred forty-seven thousand, four hundred twenty-one".