40706031 has 8 divisors (see below), whose sum is σ = 55741744. Its totient is φ = 26403840.

The previous prime is 40705997. The next prime is 40706063. The reversal of 40706031 is 13060704.

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

It is not a de Polignac number, because 40706031 - 2⁶ = 40705967 is a prime.

It is a super-2 number, since 2×40706031² = 3313961919545922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40705989 and 40706007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40706231) 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, 183250 + ... + 183471.

It is an arithmetic number, because the mean of its divisors is an integer number (6967718).

Almost surely, 2^40706031 is an apocalyptic number.

40706031 is a deficient number, since it is larger than the sum of its proper divisors (15035713).

40706031 is a wasteful number, since it uses less digits than its factorization.

40706031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366761.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 40706031 is about 6380.1278200362. The cubic root of 40706031 is about 343.9956253951.

Adding to 40706031 its reverse (13060704), we get a palindrome (53766735).

It can be divided in two parts, 4070 and 6031, that added together give a palindrome (10101).

The spelling of 40706031 in words is "forty million, seven hundred six thousand, thirty-one".