40373889 has 8 divisors (see below), whose sum is σ = 55144992. Its totient is φ = 26259360.

The previous prime is 40373881. The next prime is 40373897. The reversal of 40373889 is 98837304.

It is an interprime number because it is at equal distance from previous prime (40373881) and next prime (40373897).

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

It is not a de Polignac number, because 40373889 - 2³ = 40373881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40373889.

It is not an unprimeable number, because it can be changed into a prime (40373881) 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, 163999 + ... + 164244.

It is an arithmetic number, because the mean of its divisors is an integer number (6893124).

Almost surely, 2^40373889 is an apocalyptic number.

It is an amenable number.

40373889 is a deficient number, since it is larger than the sum of its proper divisors (14771103).

40373889 is a wasteful number, since it uses less digits than its factorization.

40373889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328287.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 40373889 is about 6354.0450895473. The cubic root of 40373889 is about 343.0574550938.

The spelling of 40373889 in words is "forty million, three hundred seventy-three thousand, eight hundred eighty-nine".