5291438 has 8 divisors (see below), whose sum is σ = 7948632. Its totient is φ = 2641896.

The previous prime is 5291431. The next prime is 5291441. The reversal of 5291438 is 8341925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5291438² = 55998632215688, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5291431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 3272.

It is an arithmetic number, because the mean of its divisors is an integer number (993579).

Almost surely, 2^5291438 is an apocalyptic number.

5291438 is a deficient number, since it is larger than the sum of its proper divisors (2657194).

5291438 is a wasteful number, since it uses less digits than its factorization.

5291438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826.

The product of its digits is 8640, while the sum is 32.

The square root of 5291438 is about 2300.3125874541. The cubic root of 5291438 is about 174.2574029722.

The spelling of 5291438 in words is "five million, two hundred ninety-one thousand, four hundred thirty-eight".