4030990 has 16 divisors (see below), whose sum is σ = 7303248. Its totient is φ = 1601856.

The previous prime is 4030981. The next prime is 4030993. The reversal of 4030990 is 990304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030993) 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, 394 + ... + 2866.

It is an arithmetic number, because the mean of its divisors is an integer number (456453).

Almost surely, 2^4030990 is an apocalyptic number.

4030990 is a deficient number, since it is larger than the sum of its proper divisors (3272258).

4030990 is a wasteful number, since it uses less digits than its factorization.

4030990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 4030990 is about 2007.7325519102. The cubic root of 4030990 is about 159.1489973655.

The spelling of 4030990 in words is "four million, thirty thousand, nine hundred ninety".