2442987 has 8 divisors (see below), whose sum is σ = 3619280. Its totient is φ = 1628640.

The previous prime is 2442977. The next prime is 2443027. The reversal of 2442987 is 7892442.

It is not a de Polignac number, because 2442987 - 2⁴ = 2442971 is a prime.

It is an Ulam number.

It is a Duffinian number.

2442987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2442907) 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, 45214 + ... + 45267.

It is an arithmetic number, because the mean of its divisors is an integer number (452410).

2^2442987 is an apocalyptic number.

2442987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2442987 is a deficient number, since it is larger than the sum of its proper divisors (1176293).

2442987 is an equidigital number, since it uses as much as digits as its factorization.

2442987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90490 (or 90484 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2442987 is about 1563.0057581468. The cubic root of 2442987 is about 134.6812231703.

The spelling of 2442987 in words is "two million, four hundred forty-two thousand, nine hundred eighty-seven".