2153438 has 8 divisors (see below), whose sum is σ = 3691632. Its totient is φ = 922896.

The previous prime is 2153429. The next prime is 2153449. The reversal of 2153438 is 8343512.

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

It is a congruent number.

It is an unprimeable number.

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, 76895 + ... + 76922.

It is an arithmetic number, because the mean of its divisors is an integer number (461454).

2^2153438 is an apocalyptic number.

2153438 is a deficient number, since it is larger than the sum of its proper divisors (1538194).

2153438 is a wasteful number, since it uses less digits than its factorization.

2153438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153826.

The product of its digits is 2880, while the sum is 26.

The square root of 2153438 is about 1467.4597098387. The cubic root of 2153438 is about 129.1350467635.

The spelling of 2153438 in words is "two million, one hundred fifty-three thousand, four hundred thirty-eight".