464924021 has 4 divisors (see below), whose sum is σ = 467492844. Its totient is φ = 462355200.

The previous prime is 464924011. The next prime is 464924029. The reversal of 464924021 is 120429464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95746225 + 369177796 = 9785^2 + 19214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-464924021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464924029) 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, 1284140 + ... + 1284501.

It is an arithmetic number, because the mean of its divisors is an integer number (116873211).

Almost surely, 2^464924021 is an apocalyptic number.

It is an amenable number.

464924021 is a deficient number, since it is larger than the sum of its proper divisors (2568823).

464924021 is a wasteful number, since it uses less digits than its factorization.

464924021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568822.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 464924021 is about 21562.0968599995. The cubic root of 464924021 is about 774.6888912919.

The spelling of 464924021 in words is "four hundred sixty-four million, nine hundred twenty-four thousand, twenty-one".