4721240465 has 4 divisors (see below), whose sum is σ = 5665488564. Its totient is φ = 3776992368.

The previous prime is 4721240453. The next prime is 4721240483. The reversal of 4721240465 is 5640421274.

It is a happy number.

4721240465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5640421274 = 2 ⋅2820210637.

It can be written as a sum of positive squares in 2 ways, for example, as 2210128144 + 2511112321 = 47012^2 + 50111^2 .

It is a cyclic number.

It is not a de Polignac number, because 4721240465 - 2⁶ = 4721240401 is a prime.

It is a super-2 number, since 2×4721240465² = 44580223056706832450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472124042 + ... + 472124051.

It is an arithmetic number, because the mean of its divisors is an integer number (1416372141).

Almost surely, 2^4721240465 is an apocalyptic number.

It is an amenable number.

4721240465 is a deficient number, since it is larger than the sum of its proper divisors (944248099).

4721240465 is an equidigital number, since it uses as much as digits as its factorization.

4721240465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944248098.

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

The square root of 4721240465 is about 68711.2833892658. The cubic root of 4721240465 is about 1677.5882420971.

The spelling of 4721240465 in words is "four billion, seven hundred twenty-one million, two hundred forty thousand, four hundred sixty-five".