40401430 has 16 divisors (see below), whose sum is σ = 73956240. Its totient is φ = 15886432.

The previous prime is 40401421. The next prime is 40401433. The reversal of 40401430 is 3410404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33649 + ... + 34828.

It is an arithmetic number, because the mean of its divisors is an integer number (4622265).

Almost surely, 2^40401430 is an apocalyptic number.

40401430 is a deficient number, since it is larger than the sum of its proper divisors (33554810).

40401430 is a wasteful number, since it uses less digits than its factorization.

40401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68543.

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

The square root of 40401430 is about 6356.2119222065. The cubic root of 40401430 is about 343.1354427741.

Adding to 40401430 its reverse (3410404), we get a palindrome (43811834).

The spelling of 40401430 in words is "forty million, four hundred one thousand, four hundred thirty".