2515420 has 24 divisors (see below), whose sum is σ = 5320224. Its totient is φ = 998976.

The previous prime is 2515417. The next prime is 2515427. The reversal of 2515420 is 245152.

2515420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3097 + ... + 3823.

It is an arithmetic number, because the mean of its divisors is an integer number (221676).

2^2515420 is an apocalyptic number.

2515420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2515420 is an abundant number, since it is smaller than the sum of its proper divisors (2804804).

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

2515420 is a wasteful number, since it uses less digits than its factorization.

2515420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2515420 is about 1586.0075661862. The cubic root of 2515420 is about 135.9993512080. Note that the first 3 decimals are identical.

It can be divided in two parts, 251 and 5420, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 2515420 in words is "two million, five hundred fifteen thousand, four hundred twenty".