40489427 has 16 divisors (see below), whose sum is σ = 47918304. Its totient is φ = 33792000.

The previous prime is 40489417. The next prime is 40489429. The reversal of 40489427 is 72498404.

It is not a de Polignac number, because 40489427 - 2¹⁰ = 40488403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40489429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5027 + ... + 10307.

It is an arithmetic number, because the mean of its divisors is an integer number (2994894).

Almost surely, 2^40489427 is an apocalyptic number.

40489427 is a deficient number, since it is larger than the sum of its proper divisors (7428877).

40489427 is a wasteful number, since it uses less digits than its factorization.

40489427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 40489427 is about 6363.1302831232. The cubic root of 40489427 is about 343.3843860572.

The spelling of 40489427 in words is "forty million, four hundred eighty-nine thousand, four hundred twenty-seven".