2603381 has 8 divisors (see below), whose sum is σ = 2852928. Its totient is φ = 2356000.

The previous prime is 2603371. The next prime is 2603389. The reversal of 2603381 is 1833062.

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

It is a 3-Lehmer number, since φ(2603381) divides (2603381-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2603381 is a prime.

It is a super-2 number, since 2×2603381² = 13555185262322, which contains 22 as substring.

It is a deceptive number, since it divides R_2603380.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2603389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041 + ... + 3801.

It is an arithmetic number, because the mean of its divisors is an integer number (356616).

It is a Poulet number, since it divides 2^2603380-1.

2^2603381 is an apocalyptic number.

It is an amenable number.

2603381 is a deficient number, since it is larger than the sum of its proper divisors (249547).

2603381 is a wasteful number, since it uses less digits than its factorization.

2603381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2603381 is about 1613.4996126433. The cubic root of 2603381 is about 137.5664648367.

The spelling of 2603381 in words is "two million, six hundred three thousand, three hundred eighty-one".