2409531 has 8 divisors (see below), whose sum is σ = 3219984. Its totient is φ = 1602720.

The previous prime is 2409509. The next prime is 2409541. The reversal of 2409531 is 1359042.

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

It is not a de Polignac number, because 2409531 - 2⁶ = 2409467 is a prime.

It is a super-2 number, since 2×2409531² = 11611679279922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2409541) 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, 1741 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (402498).

2^2409531 is an apocalyptic number.

2409531 is a deficient number, since it is larger than the sum of its proper divisors (810453).

2409531 is a wasteful number, since it uses less digits than its factorization.

2409531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2409531 is about 1552.2664075474. The cubic root of 2409531 is about 134.0635882949.

The spelling of 2409531 in words is "two million, four hundred nine thousand, five hundred thirty-one".