100305040 has 40 divisors (see below), whose sum is σ = 254412288. Its totient is φ = 36474240.

The previous prime is 100305013. The next prime is 100305053. The reversal of 100305040 is 40503001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×100305040² = 20122202098803200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100305040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56112 + ... + 57871.

Almost surely, 2^100305040 is an apocalyptic number.

100305040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100305040 is an abundant number, since it is smaller than the sum of its proper divisors (154107248).

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

100305040 is a wasteful number, since it uses less digits than its factorization.

100305040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114007 (or 114001 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 100305040 is about 10015.2403865309. The cubic root of 100305040 is about 464.6303610398.

Adding to 100305040 its reverse (40503001), we get a palindrome (140808041).

The spelling of 100305040 in words is "one hundred million, three hundred five thousand, forty".