40030680 has 32 divisors (see below), whose sum is σ = 120092400. Its totient is φ = 10674816.

The previous prime is 40030667. The next prime is 40030693. The reversal of 40030680 is 8603004.

It is an interprime number because it is at equal distance from previous prime (40030667) and next prime (40030693).

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, 166675 + ... + 166914.

Almost surely, 2^40030680 is an apocalyptic number.

40030680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40030680 is an abundant number, since it is smaller than the sum of its proper divisors (80061720).

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

40030680 is a wasteful number, since it uses less digits than its factorization.

40030680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333603 (or 333599 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40030680 is about 6326.9803223971. The cubic root of 40030680 is about 342.0826037603.

Adding to 40030680 its reverse (8603004), we get a palindrome (48633684).

The spelling of 40030680 in words is "forty million, thirty thousand, six hundred eighty".