2354381 has 4 divisors (see below), whose sum is σ = 2492892. Its totient is φ = 2215872.

The previous prime is 2354353. The next prime is 2354413. The reversal of 2354381 is 1834532.

2354381 = T₂₇₈ + T₂₇₉ + ... + T₃₂₈.

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 1876900 + 477481 = 1370^2 + 691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2354381 is a prime.

It is a super-2 number, since 2×2354381² = 11086219786322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2354381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2354311) 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, 69230 + ... + 69263.

It is an arithmetic number, because the mean of its divisors is an integer number (623223).

2^2354381 is an apocalyptic number.

It is an amenable number.

2354381 is a deficient number, since it is larger than the sum of its proper divisors (138511).

2354381 is a wasteful number, since it uses less digits than its factorization.

2354381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138510.

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

The square root of 2354381 is about 1534.3992309696. The cubic root of 2354381 is about 133.0328559978.

The spelling of 2354381 in words is "two million, three hundred fifty-four thousand, three hundred eighty-one".