40120430 has 32 divisors (see below), whose sum is σ = 83035584. Its totient is φ = 13671936.

The previous prime is 40120397. The next prime is 40120463. The reversal of 40120430 is 3402104.

It is an interprime number because it is at equal distance from previous prime (40120397) and next prime (40120463).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10454 + ... + 13766.

It is an arithmetic number, because the mean of its divisors is an integer number (2594862).

Almost surely, 2^40120430 is an apocalyptic number.

40120430 is an abundant number, since it is smaller than the sum of its proper divisors (42915154).

40120430 is a wasteful number, since it uses less digits than its factorization.

40120430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40120430 is about 6334.0689923619. The cubic root of 40120430 is about 342.3380661319.

Adding to 40120430 its reverse (3402104), we get a palindrome (43522534).

The spelling of 40120430 in words is "forty million, one hundred twenty thousand, four hundred thirty".