3764487990 has 64 divisors (see below), whose sum is σ = 9599705280. Its totient is φ = 944775680.

The previous prime is 3764487977. The next prime is 3764487997. The reversal of 3764487990 is 997844673.

It is a self number, because there is not a number n which added to its sum of digits gives 3764487990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3764487997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134620 + ... + 160160.

It is an arithmetic number, because the mean of its divisors is an integer number (149995395).

Almost surely, 2^3764487990 is an apocalyptic number.

3764487990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3764487990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4799852640).

3764487990 is an abundant number, since it is smaller than the sum of its proper divisors (5835217290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3764487990 is a wasteful number, since it uses less digits than its factorization.

3764487990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25602 (or 25568 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The square root of 3764487990 is about 61355.4234766577. The cubic root of 3764487990 is about 1555.6144620002.

The spelling of 3764487990 in words is "three billion, seven hundred sixty-four million, four hundred eighty-seven thousand, nine hundred ninety".