2400021487 has 2 divisors, whose sum is σ = 2400021488. Its totient is φ = 2400021486.

The previous prime is 2400021473. The next prime is 2400021517. The reversal of 2400021487 is 7841200042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400021487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400021887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200010743 + 1200010744.

It is an arithmetic number, because the mean of its divisors is an integer number (1200010744).

Almost surely, 2^2400021487 is an apocalyptic number.

2400021487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400021487 is an equidigital number, since it uses as much as digits as its factorization.

2400021487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 2400021487 is about 48990.0141559481. The cubic root of 2400021487 is about 1338.8698957374.

The spelling of 2400021487 in words is "two billion, four hundred million, twenty-one thousand, four hundred eighty-seven".