100012390 has 16 divisors (see below), whose sum is σ = 189497520. Its totient is φ = 37899360.

The previous prime is 100012379. The next prime is 100012391. The reversal of 100012390 is 93210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263001 + ... + 263380.

It is an arithmetic number, because the mean of its divisors is an integer number (11843595).

Almost surely, 2^100012390 is an apocalyptic number.

100012390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100012390 is a deficient number, since it is larger than the sum of its proper divisors (89485130).

100012390 is a wasteful number, since it uses less digits than its factorization.

100012390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526407.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 100012390 is about 10000.6194808122. The cubic root of 100012390 is about 464.1780523315.

Adding to 100012390 its reverse (93210001), we get a palindrome (193222391).

The spelling of 100012390 in words is "one hundred million, twelve thousand, three hundred ninety".