40242430 has 32 divisors (see below), whose sum is σ = 75427200. Its totient is φ = 15439872.

The previous prime is 40242427. The next prime is 40242457. The reversal of 40242430 is 3424204.

It is a junction number, because it is equal to n+sod(n) for n = 40242398 and 40242407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55611 + ... + 56329.

It is an arithmetic number, because the mean of its divisors is an integer number (2357100).

Almost surely, 2^40242430 is an apocalyptic number.

40242430 is a deficient number, since it is larger than the sum of its proper divisors (35184770).

40242430 is a wasteful number, since it uses less digits than its factorization.

40242430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40242430 is about 6343.6921425933. The cubic root of 40242430 is about 342.6847139749.

Adding to 40242430 its reverse (3424204), we get a palindrome (43666634).

The spelling of 40242430 in words is "forty million, two hundred forty-two thousand, four hundred thirty".