2409651 has 6 divisors (see below), whose sum is σ = 3480620. Its totient is φ = 1606428.

The previous prime is 2409613. The next prime is 2409679. The reversal of 2409651 is 1569042.

2409651 is a `hidden beast` number, since 2 + 4 + 0 + 9 + 651 = 666.

It is not a de Polignac number, because 2409651 - 2¹⁵ = 2376883 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2409601) 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, 133861 + ... + 133878.

2^2409651 is an apocalyptic number.

2409651 is a deficient number, since it is larger than the sum of its proper divisors (1070969).

2409651 is a wasteful number, since it uses less digits than its factorization.

2409651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267745 (or 267742 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2409651 is about 1552.3050602250. The cubic root of 2409651 is about 134.0658138128.

The spelling of 2409651 in words is "two million, four hundred nine thousand, six hundred fifty-one".