4240090 has 16 divisors (see below), whose sum is σ = 7895880. Its totient is φ = 1637440.

The previous prime is 4240079. The next prime is 4240091. The reversal of 4240090 is 900424.

It can be written as a sum of positive squares in 4 ways, for example, as 1896129 + 2343961 = 1377^2 + 1531^2 .

It is not an unprimeable number, because it can be changed into a prime (4240091) 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, 7021 + ... + 7600.

Almost surely, 2^4240090 is an apocalyptic number.

4240090 is a deficient number, since it is larger than the sum of its proper divisors (3655790).

4240090 is a wasteful number, since it uses less digits than its factorization.

4240090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14657.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4240090 is about 2059.1478820133. The cubic root of 4240090 is about 161.8545918727.

The spelling of 4240090 in words is "four million, two hundred forty thousand, ninety".