40989430 has 16 divisors (see below), whose sum is σ = 73956960. Its totient is φ = 16356672.

The previous prime is 40989401. The next prime is 40989439. The reversal of 40989430 is 3498904.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 40989430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40989439) 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, 279 + ... + 9058.

It is an arithmetic number, because the mean of its divisors is an integer number (4622310).

Almost surely, 2^40989430 is an apocalyptic number.

40989430 is a deficient number, since it is larger than the sum of its proper divisors (32967530).

40989430 is a wasteful number, since it uses less digits than its factorization.

40989430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 40989430 is about 6402.2988058978. The cubic root of 40989430 is about 344.7920892506.

The spelling of 40989430 in words is "forty million, nine hundred eighty-nine thousand, four hundred thirty".