2411661 has 16 divisors (see below), whose sum is σ = 3765888. Its totient is φ = 1344000.

The previous prime is 2411641. The next prime is 2411663. The reversal of 2411661 is 1661142.

It is not a de Polignac number, because 2411661 - 2⁶ = 2411597 is a prime.

It is a super-2 number, since 2×2411661² = 11632217557842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2411663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (235368).

2^2411661 is an apocalyptic number.

2411661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2411661 is a deficient number, since it is larger than the sum of its proper divisors (1354227).

2411661 is a wasteful number, since it uses less digits than its factorization.

2411661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852.

The product of its digits is 288, while the sum is 21.

The square root of 2411661 is about 1552.9523495587. The cubic root of 2411661 is about 134.1030802599.

The spelling of 2411661 in words is "two million, four hundred eleven thousand, six hundred sixty-one".