2515340420 has 48 divisors (see below), whose sum is σ = 5329724400. Its totient is φ = 997126656.

The previous prime is 2515340419. The next prime is 2515340423. The reversal of 2515340420 is 240435152.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 304083844 + 2211256576 = 17438^2 + 47024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2515340420.

It is not an unprimeable number, because it can be changed into a prime (2515340423) 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, 1289606 + ... + 1291554.

It is an arithmetic number, because the mean of its divisors is an integer number (111035925).

Almost surely, 2^2515340420 is an apocalyptic number.

2515340420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2515340420 is an abundant number, since it is smaller than the sum of its proper divisors (2814383980).

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

2515340420 is a wasteful number, since it uses less digits than its factorization.

2515340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2502 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2515340420 is about 50153.1695907646. The cubic root of 2515340420 is about 1359.9791699520.

Adding to 2515340420 its reverse (240435152), we get a palindrome (2755775572).

The spelling of 2515340420 in words is "two billion, five hundred fifteen million, three hundred forty thousand, four hundred twenty".