4490154457 has 4 divisors (see below), whose sum is σ = 4513419700. Its totient is φ = 4466889216.

The previous prime is 4490154439. The next prime is 4490154463. The reversal of 4490154457 is 7544510944.

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 2563295641 + 1926858816 = 50629^2 + 43896^2 .

It is a cyclic number.

It is not a de Polignac number, because 4490154457 - 2¹⁵ = 4490121689 is a prime.

It is a super-2 number, since 2×4490154457² = 40322974095433929698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4490154437) 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, 11632332 + ... + 11632717.

It is an arithmetic number, because the mean of its divisors is an integer number (1128354925).

Almost surely, 2^4490154457 is an apocalyptic number.

It is an amenable number.

4490154457 is a deficient number, since it is larger than the sum of its proper divisors (23265243).

4490154457 is a wasteful number, since it uses less digits than its factorization.

4490154457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23265242.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 4490154457 is about 67008.6147969050. The cubic root of 4490154457 is about 1649.7586983524.

The spelling of 4490154457 in words is "four billion, four hundred ninety million, one hundred fifty-four thousand, four hundred fifty-seven".