40100030 has 16 divisors (see below), whose sum is σ = 72896544. Its totient is φ = 15880800.

The previous prime is 40100003. The next prime is 40100041. The reversal of 40100030 is 3000104.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40099990 and 40100017.

It is a congruent number.

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, 18842 + ... + 20861.

It is an arithmetic number, because the mean of its divisors is an integer number (4556034).

Almost surely, 2^40100030 is an apocalyptic number.

40100030 is a deficient number, since it is larger than the sum of its proper divisors (32796514).

40100030 is a wasteful number, since it uses less digits than its factorization.

40100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39811.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 40100030 is about 6332.4584483437. The cubic root of 40100030 is about 342.2800335157.

Adding to 40100030 its reverse (3000104), we get a palindrome (43100134).

The spelling of 40100030 in words is "forty million, one hundred thousand, thirty".