2515422 has 64 divisors (see below), whose sum is σ = 6580224. Its totient is φ = 622080.

The previous prime is 2515417. The next prime is 2515427. The reversal of 2515422 is 2245152.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2515417) and next prime (2515427).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2515427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9147 + ... + 9417.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2^2515422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2515422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3290112).

2515422 is an abundant number, since it is smaller than the sum of its proper divisors (4064802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2515422 is a wasteful number, since it uses less digits than its factorization.

2515422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its digits is 800, while the sum is 21.

The square root of 2515422 is about 1586.0081967001. The cubic root of 2515422 is about 135.9993872521. Note that the first 3 decimals are identical.

The spelling of 2515422 in words is "two million, five hundred fifteen thousand, four hundred twenty-two".