31040234 has 8 divisors (see below), whose sum is σ = 46607808. Its totient is φ = 15504300.

The previous prime is 31040231. The next prime is 31040293. The reversal of 31040234 is 43204013.

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

It is a super-2 number, since 2×31040234² = 1926992253549512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31040231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5282 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (5825976).

Almost surely, 2^31040234 is an apocalyptic number.

31040234 is a deficient number, since it is larger than the sum of its proper divisors (15567574).

31040234 is a wasteful number, since it uses less digits than its factorization.

31040234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15820.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 31040234 is about 5571.3763111102. The cubic root of 31040234 is about 314.2739100446.

Adding to 31040234 its reverse (43204013), we get a palindrome (74244247).

The spelling of 31040234 in words is "thirty-one million, forty thousand, two hundred thirty-four".