2421501 has 8 divisors (see below), whose sum is σ = 3307584. Its totient is φ = 1574880.

The previous prime is 2421491. The next prime is 2421511. The reversal of 2421501 is 1051242.

It is an interprime number because it is at equal distance from previous prime (2421491) and next prime (2421511).

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

It is not a de Polignac number, because 2421501 - 2⁵ = 2421469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421511) 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, 9721 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (413448).

2^2421501 is an apocalyptic number.

It is an amenable number.

2421501 is a deficient number, since it is larger than the sum of its proper divisors (886083).

2421501 is a wasteful number, since it uses less digits than its factorization.

2421501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19731.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2421501 is about 1556.1172834976. The cubic root of 2421501 is about 134.2852207941.

Adding to 2421501 its reverse (1051242), we get a palindrome (3472743).

The spelling of 2421501 in words is "two million, four hundred twenty-one thousand, five hundred one".