40427361 has 12 divisors (see below), whose sum is σ = 62887188. Its totient is φ = 24878304.

The previous prime is 40427333. The next prime is 40427407. The reversal of 40427361 is 16372404.

It can be written as a sum of positive squares in 2 ways, for example, as 20793600 + 19633761 = 4560^2 + 4431^2 .

It is not a de Polignac number, because 40427361 - 2⁶ = 40427297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40427311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172650 + ... + 172883.

It is an arithmetic number, because the mean of its divisors is an integer number (5240599).

Almost surely, 2^40427361 is an apocalyptic number.

It is an amenable number.

40427361 is a deficient number, since it is larger than the sum of its proper divisors (22459827).

40427361 is a wasteful number, since it uses less digits than its factorization.

40427361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345552 (or 345549 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 40427361 is about 6358.2514105688. The cubic root of 40427361 is about 343.2088390391.

Adding to 40427361 its reverse (16372404), we get a palindrome (56799765).

The spelling of 40427361 in words is "forty million, four hundred twenty-seven thousand, three hundred sixty-one".