3990408254 has 8 divisors (see below), whose sum is σ = 6840699888. Its totient is φ = 1710174960.

The previous prime is 3990408251. The next prime is 3990408281. The reversal of 3990408254 is 4528040993.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990408251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142514567 + ... + 142514594.

It is an arithmetic number, because the mean of its divisors is an integer number (855087486).

Almost surely, 2^3990408254 is an apocalyptic number.

3990408254 is a deficient number, since it is larger than the sum of its proper divisors (2850291634).

3990408254 is a wasteful number, since it uses less digits than its factorization.

3990408254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285029170.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 3990408254 is about 63169.6782800103. The cubic root of 3990408254 is about 1586.1312074503.

The spelling of 3990408254 in words is "three billion, nine hundred ninety million, four hundred eight thousand, two hundred fifty-four".