40050989 has 4 divisors (see below), whose sum is σ = 43692000. Its totient is φ = 36409980.

The previous prime is 40050971. The next prime is 40051007. The reversal of 40050989 is 98905004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40050971) and next prime (40051007).

It is a cyclic number.

It is not a de Polignac number, because 40050989 - 2⁸ = 40050733 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40050919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820489 + ... + 1820510.

It is an arithmetic number, because the mean of its divisors is an integer number (10923000).

Almost surely, 2^40050989 is an apocalyptic number.

It is an amenable number.

40050989 is a deficient number, since it is larger than the sum of its proper divisors (3641011).

40050989 is a wasteful number, since it uses less digits than its factorization.

40050989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641010.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 40050989 is about 6328.5850709302. The cubic root of 40050989 is about 342.1404442387.

It can be divided in two parts, 40050 and 989, that multiplied together give a triangular number (39609450 = T₈₉₀₀).

The spelling of 40050989 in words is "forty million, fifty thousand, nine hundred eighty-nine".