3644914890 has 32 divisors (see below), whose sum is σ = 8754045696. Its totient is φ = 971282880.

The previous prime is 3644914843. The next prime is 3644914927. The reversal of 3644914890 is 984194463.

It is a happy number.

3644914890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3644914890 is a nontrivial binomial coefficient, being equal to C(85381, 2).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 85380.

It is an arithmetic number, because the mean of its divisors is an integer number (273563928).

Almost surely, 2^3644914890 is an apocalyptic number.

3644914890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3644914890 is the 85380-th triangular number.

3644914890 is an abundant number, since it is smaller than the sum of its proper divisors (5109130806).

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

3644914890 is a wasteful number, since it uses less digits than its factorization.

3644914890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86814.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 3644914890 is about 60373.1305300628. The cubic root of 3644914890 is about 1538.9663736398.

The spelling of 3644914890 in words is "three billion, six hundred forty-four million, nine hundred fourteen thousand, eight hundred ninety".