3990037990 has 16 divisors (see below), whose sum is σ = 7272982080. Its totient is φ = 1575812160.

The previous prime is 3990037973. The next prime is 3990037991. The reversal of 3990037990 is 997300993.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990037991) 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 7 ways as a sum of consecutive naturals, for example, 2524551 + ... + 2526130.

It is an arithmetic number, because the mean of its divisors is an integer number (454561380).

Almost surely, 2^3990037990 is an apocalyptic number.

3990037990 is a deficient number, since it is larger than the sum of its proper divisors (3282944090).

3990037990 is a wasteful number, since it uses less digits than its factorization.

3990037990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050767.

The product of its (nonzero) digits is 413343, while the sum is 49.

The square root of 3990037990 is about 63166.7475021470. The cubic root of 3990037990 is about 1586.0821476872.

The spelling of 3990037990 in words is "three billion, nine hundred ninety million, thirty-seven thousand, nine hundred ninety".