2506730 has 8 divisors (see below), whose sum is σ = 4512132.
Its totient is φ = 1002688.
The previous prime is 2506729. The next prime is 2506759. The reversal of 2506730 is 376052.
It can be written as a sum of positive squares in 2 ways, for example, as 2505889 + 841 = 1583^2 + 29^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 2506696 and 2506705.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125327 + ... + 125346.
22506730 is an apocalyptic number.
2506730 is a deficient number, since it is larger than the sum of its proper divisors (2005402).
2506730 is a wasteful number, since it uses less digits than its factorization.
2506730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 250680.
The product of its (nonzero) digits is 1260, while the sum is 23.
The square root of 2506730 is about 1583.2656125868.
The cubic root of 2506730 is about 135.8425585799.
The spelling of 2506730 in words is "two million, five hundred six thousand, seven hundred thirty".