53844890 has 32 divisors (see below), whose sum is σ = 108319680. Its totient is φ = 19100800.

The previous prime is 53844887. The next prime is 53844907. The reversal of 53844890 is 9844835.

It is a super-2 number, since 2×53844890² = 5798544358224200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 1460 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (3384990).

Almost surely, 2^53844890 is an apocalyptic number.

53844890 is an abundant number, since it is smaller than the sum of its proper divisors (54474790).

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

53844890 is a wasteful number, since it uses less digits than its factorization.

53844890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11998.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 53844890 is about 7337.9077399488. The cubic root of 53844890 is about 377.6140672501.

The spelling of 53844890 in words is "fifty-three million, eight hundred forty-four thousand, eight hundred ninety".