2516430 has 64 divisors (see below), whose sum is σ = 7216128. Its totient is φ = 549120.

The previous prime is 2516429. The next prime is 2516447. The reversal of 2516430 is 346152.

It is a happy number.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2516397 and 2516406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4570 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (112752).

2^2516430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2516430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3608064).

2516430 is an abundant number, since it is smaller than the sum of its proper divisors (4699698).

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

2516430 is a wasteful number, since it uses less digits than its factorization.

2516430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2516430 is about 1586.3259438085. The cubic root of 2516430 is about 136.0175510798.

The spelling of 2516430 in words is "two million, five hundred sixteen thousand, four hundred thirty".