2661386 has 24 divisors (see below), whose sum is σ = 5003460. Its totient is φ = 1052352.

The previous prime is 2661371. The next prime is 2661391. The reversal of 2661386 is 6831662.

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 1225 = 1631^2 + 35^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

2661386 is a modest number, since divided by 1386 gives 266 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230 + ... + 2318.

2^2661386 is an apocalyptic number.

2661386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2661386 is a deficient number, since it is larger than the sum of its proper divisors (2342074).

2661386 is a wasteful number, since it uses less digits than its factorization.

2661386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2111 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 2661386 is about 1631.3754932571. The cubic root of 2661386 is about 138.5806591384.

The spelling of 2661386 in words is "two million, six hundred sixty-one thousand, three hundred eighty-six".