545010990 has 128 divisors (see below), whose sum is σ = 1463132160. Its totient is φ = 129220608.

The previous prime is 545010989. The next prime is 545011043. The reversal of 545010990 is 99010545.

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 63 ways as a sum of consecutive naturals, for example, 1137571 + ... + 1138049.

It is an arithmetic number, because the mean of its divisors is an integer number (11430720).

Almost surely, 2^545010990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545010990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731566080).

545010990 is an abundant number, since it is smaller than the sum of its proper divisors (918121170).

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

545010990 is a wasteful number, since it uses less digits than its factorization.

545010990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 545010990 is about 23345.4704386097. The cubic root of 545010990 is about 816.8364074961.

The spelling of 545010990 in words is "five hundred forty-five million, ten thousand, nine hundred ninety".