2400387 has 8 divisors (see below), whose sum is σ = 3491520. Its totient is φ = 1454760.

The previous prime is 2400367. The next prime is 2400407. The reversal of 2400387 is 7830042.

It is an interprime number because it is at equal distance from previous prime (2400367) and next prime (2400407).

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

It is not a de Polignac number, because 2400387 - 2⁶ = 2400323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2400347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36337 + ... + 36402.

It is an arithmetic number, because the mean of its divisors is an integer number (436440).

2^2400387 is an apocalyptic number.

2400387 is a deficient number, since it is larger than the sum of its proper divisors (1091133).

2400387 is a wasteful number, since it uses less digits than its factorization.

2400387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72753.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2400387 is about 1549.3182371611. The cubic root of 2400387 is about 133.8937860339.

It can be divided in two parts, 24003 and 87, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 2400387 in words is "two million, four hundred thousand, three hundred eighty-seven".