4290457 has 4 divisors (see below), whose sum is σ = 4294836. Its totient is φ = 4286080.

The previous prime is 4290449. The next prime is 4290467. The reversal of 4290457 is 7540924.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1089936 + 3200521 = 1044^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 4290457 - 2³ = 4290449 is a prime.

It is a Duffinian number.

4290457 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4290427) 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, 33 + ... + 2929.

It is an arithmetic number, because the mean of its divisors is an integer number (1073709).

Almost surely, 2^4290457 is an apocalyptic number.

It is an amenable number.

4290457 is a deficient number, since it is larger than the sum of its proper divisors (4379).

4290457 is a wasteful number, since it uses less digits than its factorization.

4290457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 4290457 is about 2071.3418356225. The cubic root of 4290457 is about 162.4929480174.

The spelling of 4290457 in words is "four million, two hundred ninety thousand, four hundred fifty-seven".