2493021 has 8 divisors (see below), whose sum is σ = 3394944. Its totient is φ = 1626560.

The previous prime is 2493019. The next prime is 2493037. The reversal of 2493021 is 1203942.

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

It is a cyclic number.

It is not a de Polignac number, because 2493021 - 2¹ = 2493019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493041) 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, 8700 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (424368).

2^2493021 is an apocalyptic number.

It is an amenable number.

2493021 is a deficient number, since it is larger than the sum of its proper divisors (901923).

2493021 is a wasteful number, since it uses less digits than its factorization.

2493021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17731.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2493021 is about 1578.9303341186. The cubic root of 2493021 is about 135.5944703238.

Adding to 2493021 its reverse (1203942), we get a palindrome (3696963).

The spelling of 2493021 in words is "two million, four hundred ninety-three thousand, twenty-one".