2453381 has 6 divisors (see below), whose sum is σ = 2853990. Its totient is φ = 2102856.

The previous prime is 2453377. The next prime is 2453401. The reversal of 2453381 is 1833542.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 188356 = 1505^2 + 434^2 .

It is not a de Polignac number, because 2453381 - 2² = 2453377 is a prime.

It is a super-2 number, since 2×2453381² = 12038156662322, 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 2453381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24986 + ... + 25083.

It is an arithmetic number, because the mean of its divisors is an integer number (475665).

2^2453381 is an apocalyptic number.

It is an amenable number.

2453381 is a deficient number, since it is larger than the sum of its proper divisors (400609).

2453381 is an equidigital number, since it uses as much as digits as its factorization.

2453381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50083 (or 50076 counting only the distinct ones).

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

The square root of 2453381 is about 1566.3272327327. The cubic root of 2453381 is about 134.8719590733.

The spelling of 2453381 in words is "two million, four hundred fifty-three thousand, three hundred eighty-one".