3650645790 has 192 divisors, whose sum is σ = 11441544192. Its totient is φ = 796646400.

The previous prime is 3650645753. The next prime is 3650645851. The reversal of 3650645790 is 975460563.

3650645790 is a `hidden beast` number, since 3 + 6 + 506 + 4 + 57 + 90 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 382375 + ... + 391805.

It is an arithmetic number, because the mean of its divisors is an integer number (59591376).

Almost surely, 2^3650645790 is an apocalyptic number.

3650645790 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 3650645790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5720772096).

3650645790 is an abundant number, since it is smaller than the sum of its proper divisors (7790898402).

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

3650645790 is a wasteful number, since it uses less digits than its factorization.

3650645790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9495 (or 9492 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 3650645790 is about 60420.5742276586. The cubic root of 3650645790 is about 1539.7725236054.

The spelling of 3650645790 in words is "three billion, six hundred fifty million, six hundred forty-five thousand, seven hundred ninety".