40891430 has 8 divisors (see below), whose sum is σ = 73604592. Its totient is φ = 16356568.

The previous prime is 40891429. The next prime is 40891463. The reversal of 40891430 is 3419804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40891393 and 40891402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044562 + ... + 2044581.

It is an arithmetic number, because the mean of its divisors is an integer number (9200574).

Almost surely, 2^40891430 is an apocalyptic number.

40891430 is a deficient number, since it is larger than the sum of its proper divisors (32713162).

40891430 is a wasteful number, since it uses less digits than its factorization.

40891430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089150.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40891430 is about 6394.6407248570. The cubic root of 40891430 is about 344.5170867331.

The spelling of 40891430 in words is "forty million, eight hundred ninety-one thousand, four hundred thirty".