40213430 has 32 divisors (see below), whose sum is σ = 78148800. Its totient is φ = 14852992.

The previous prime is 40213429. The next prime is 40213441. The reversal of 40213430 is 3431204.

It is a junction number, because it is equal to n+sod(n) for n = 40213399 and 40213408.

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, 3656 + ... + 9684.

It is an arithmetic number, because the mean of its divisors is an integer number (2442150).

Almost surely, 2^40213430 is an apocalyptic number.

40213430 is a deficient number, since it is larger than the sum of its proper divisors (37935370).

40213430 is a wasteful number, since it uses less digits than its factorization.

40213430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 40213430 is about 6341.4059955187. The cubic root of 40213430 is about 342.6023776213.

Adding to 40213430 its reverse (3431204), we get a palindrome (43644634).

The spelling of 40213430 in words is "forty million, two hundred thirteen thousand, four hundred thirty".