31402041 has 48 divisors (see below), whose sum is σ = 50433600. Its totient is φ = 17297280.

The previous prime is 31402037. The next prime is 31402069. The reversal of 31402041 is 14020413.

It is not a de Polignac number, because 31402041 - 2² = 31402037 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31402041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402081) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199935 + ... + 200091.

It is an arithmetic number, because the mean of its divisors is an integer number (1050700).

Almost surely, 2^31402041 is an apocalyptic number.

It is an amenable number.

31402041 is a deficient number, since it is larger than the sum of its proper divisors (19031559).

31402041 is a wasteful number, since it uses less digits than its factorization.

31402041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 31402041 is about 5603.7524035239. The cubic root of 31402041 is about 315.4902620138.

Adding to 31402041 its reverse (14020413), we get a palindrome (45422454).

The spelling of 31402041 in words is "thirty-one million, four hundred two thousand, forty-one".