2131438 has 8 divisors (see below), whose sum is σ = 3204432. Its totient is φ = 1063296.

The previous prime is 2131429. The next prime is 2131447. The reversal of 2131438 is 8341312.

It is an interprime number because it is at equal distance from previous prime (2131429) and next prime (2131447).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231 + ... + 2077.

It is an arithmetic number, because the mean of its divisors is an integer number (400554).

2^2131438 is an apocalyptic number.

2131438 is a deficient number, since it is larger than the sum of its proper divisors (1072994).

2131438 is a wasteful number, since it uses less digits than its factorization.

2131438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its digits is 576, while the sum is 22.

The square root of 2131438 is about 1459.9445194938. The cubic root of 2131438 is about 128.6937832306.

The spelling of 2131438 in words is "two million, one hundred thirty-one thousand, four hundred thirty-eight".