2495421 has 16 divisors (see below), whose sum is σ = 3825600. Its totient is φ = 1605744.

The previous prime is 2495417. The next prime is 2495429. The reversal of 2495421 is 1245942.

It is not a de Polignac number, because 2495421 - 2² = 2495417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

2495421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495429) 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, 811 + ... + 2376.

It is an arithmetic number, because the mean of its divisors is an integer number (239100).

2^2495421 is an apocalyptic number.

It is an amenable number.

2495421 is a deficient number, since it is larger than the sum of its proper divisors (1330179).

2495421 is a wasteful number, since it uses less digits than its factorization.

2495421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3219 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2495421 is about 1579.6901594933. The cubic root of 2495421 is about 135.6379680663.

It can be divided in two parts, 2495 and 421, that added together give a square (2916 = 54²).

The spelling of 2495421 in words is "two million, four hundred ninety-five thousand, four hundred twenty-one".