40051430 has 32 divisors (see below), whose sum is σ = 76260960. Its totient is φ = 15102720.

The previous prime is 40051423. The next prime is 40051433. The reversal of 40051430 is 3415004.

It is a junction number, because it is equal to n+sod(n) for n = 40051399 and 40051408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40051433) 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, 52250 + ... + 53010.

It is an arithmetic number, because the mean of its divisors is an integer number (2383155).

Almost surely, 2^40051430 is an apocalyptic number.

40051430 is a deficient number, since it is larger than the sum of its proper divisors (36209530).

40051430 is a wasteful number, since it uses less digits than its factorization.

40051430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40051430 is about 6328.6199127456. The cubic root of 40051430 is about 342.1416999995.

Adding to 40051430 its reverse (3415004), we get a palindrome (43466434).

The spelling of 40051430 in words is "forty million, fifty-one thousand, four hundred thirty".