544161990 has 32 divisors (see below), whose sum is σ = 1336363776. Its totient is φ = 141734880.

The previous prime is 544161977. The next prime is 544162019. The reversal of 544161990 is 99161445.

It is a super-2 number, since 2×544161990² = 592224542721520200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 209626 + ... + 212205.

It is an arithmetic number, because the mean of its divisors is an integer number (41761368).

Almost surely, 2^544161990 is an apocalyptic number.

544161990 is an abundant number, since it is smaller than the sum of its proper divisors (792201786).

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

544161990 is a wasteful number, since it uses less digits than its factorization.

544161990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421884.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 544161990 is about 23327.2799528792. The cubic root of 544161990 is about 816.4120401987.

The spelling of 544161990 in words is "five hundred forty-four million, one hundred sixty-one thousand, nine hundred ninety".