2400872645 has 8 divisors (see below), whose sum is σ = 2884414104. Its totient is φ = 1918453504.

The previous prime is 2400872627. The next prime is 2400872653. The reversal of 2400872645 is 5462780042.

It can be written as a sum of positive squares in 4 ways, for example, as 167081476 + 2233791169 = 12926^2 + 47263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2400872645 - 2⁶ = 2400872581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2400872599 and 2400872608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275864 + ... + 284433.

It is an arithmetic number, because the mean of its divisors is an integer number (360551763).

Almost surely, 2^2400872645 is an apocalyptic number.

It is an amenable number.

2400872645 is a deficient number, since it is larger than the sum of its proper divisors (483541459).

2400872645 is an equidigital number, since it uses as much as digits as its factorization.

2400872645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561159.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 2400872645 is about 48998.7004419505. The cubic root of 2400872645 is about 1339.0281519778.

The spelling of 2400872645 in words is "two billion, four hundred million, eight hundred seventy-two thousand, six hundred forty-five".