2356481 has 4 divisors (see below), whose sum is σ = 2359764. Its totient is φ = 2353200.

The previous prime is 2356469. The next prime is 2356531. The reversal of 2356481 is 1846532.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1575025 + 781456 = 1255^2 + 884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2356481 is a prime.

It is a super-2 number, since 2×2356481² = 11106005406722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2356411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (589941).

2^2356481 is an apocalyptic number.

It is an amenable number.

2356481 is a deficient number, since it is larger than the sum of its proper divisors (3283).

2356481 is a wasteful number, since it uses less digits than its factorization.

2356481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282.

The product of its digits is 5760, while the sum is 29.

The square root of 2356481 is about 1535.0833853573. The cubic root of 2356481 is about 133.0723973150.

The spelling of 2356481 in words is "two million, three hundred fifty-six thousand, four hundred eighty-one".