100485390 has 64 divisors (see below), whose sum is σ = 253725696. Its totient is φ = 25420032.

The previous prime is 100485373. The next prime is 100485391. The reversal of 100485390 is 93584001.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100485391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93999 + ... + 95061.

It is an arithmetic number, because the mean of its divisors is an integer number (3964464).

Almost surely, 2^100485390 is an apocalyptic number.

100485390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100485390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126862848).

100485390 is an abundant number, since it is smaller than the sum of its proper divisors (153240306).

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

100485390 is a wasteful number, since it uses less digits than its factorization.

100485390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 100485390 is about 10024.2401208271. The cubic root of 100485390 is about 464.9086651460.

The spelling of 100485390 in words is "one hundred million, four hundred eighty-five thousand, three hundred ninety".