3652421890 has 16 divisors (see below), whose sum is σ = 7080079608. Its totient is φ = 1348586496.

The previous prime is 3652421881. The next prime is 3652421897. The reversal of 3652421890 is 981242563.

It can be written as a sum of positive squares in 4 ways, for example, as 2199516201 + 1452905689 = 46899^2 + 38117^2 .

It is not an unprimeable number, because it can be changed into a prime (3652421897) 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, 14047647 + ... + 14047906.

Almost surely, 2^3652421890 is an apocalyptic number.

3652421890 is a deficient number, since it is larger than the sum of its proper divisors (3427657718).

3652421890 is a wasteful number, since it uses less digits than its factorization.

3652421890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28095573.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 3652421890 is about 60435.2702484236. The cubic root of 3652421890 is about 1540.0221914495.

The spelling of 3652421890 in words is "three billion, six hundred fifty-two million, four hundred twenty-one thousand, eight hundred ninety".