2415864 has 32 divisors (see below), whose sum is σ = 6589440. Its totient is φ = 732000.

The previous prime is 2415863. The next prime is 2415871. The reversal of 2415864 is 4685142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2415863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4312 + ... + 4839.

It is an arithmetic number, because the mean of its divisors is an integer number (205920).

2^2415864 is an apocalyptic number.

2415864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2415864 is an abundant number, since it is smaller than the sum of its proper divisors (4173576).

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

2415864 is a wasteful number, since it uses less digits than its factorization.

2415864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171 (or 9167 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 2415864 is about 1554.3049893763. The cubic root of 2415864 is about 134.1809392032.

It can be divided in two parts, 241 and 5864, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 2415864 in words is "two million, four hundred fifteen thousand, eight hundred sixty-four".