100303240 has 16 divisors (see below), whose sum is σ = 225682380. Its totient is φ = 40121280.

The previous prime is 100303237. The next prime is 100303243. The reversal of 100303240 is 42303001.

It is an interprime number because it is at equal distance from previous prime (100303237) and next prime (100303243).

It can be written as a sum of positive squares in 2 ways, for example, as 97337956 + 2965284 = 9866^2 + 1722^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100303240.

It is not an unprimeable number, because it can be changed into a prime (100303243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253751 + ... + 1253830.

Almost surely, 2^100303240 is an apocalyptic number.

100303240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100303240 is an abundant number, since it is smaller than the sum of its proper divisors (125379140).

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

100303240 is a wasteful number, since it uses less digits than its factorization.

100303240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2507592 (or 2507588 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 100303240 is about 10015.1505230825. The cubic root of 100303240 is about 464.6275817190.

Adding to 100303240 its reverse (42303001), we get a palindrome (142606241).

The spelling of 100303240 in words is "one hundred million, three hundred three thousand, two hundred forty".