40140430 has 32 divisors (see below), whose sum is σ = 79623648. Its totient is φ = 14448000.

The previous prime is 40140427. The next prime is 40140431. The reversal of 40140430 is 3404104.

It is a super-2 number, since 2×40140430² = 3222508241169800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9304 + ... + 12916.

It is an arithmetic number, because the mean of its divisors is an integer number (2488239).

Almost surely, 2^40140430 is an apocalyptic number.

40140430 is a deficient number, since it is larger than the sum of its proper divisors (39483218).

40140430 is a wasteful number, since it uses less digits than its factorization.

40140430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 40140430 is about 6335.6475596422. The cubic root of 40140430 is about 342.3949417597.

Adding to 40140430 its reverse (3404104), we get a palindrome (43544534).

The spelling of 40140430 in words is "forty million, one hundred forty thousand, four hundred thirty".