40948931 has 2 divisors, whose sum is σ = 40948932. Its totient is φ = 40948930.

The previous prime is 40948883. The next prime is 40948961. The reversal of 40948931 is 13984904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40948931 - 2⁶ = 40948867 is a prime.

It is a super-2 number, since 2×40948931² = 3353629900085522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_2487818 and since 40948931 and 2487818 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (40948961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20474465 + 20474466.

It is an arithmetic number, because the mean of its divisors is an integer number (20474466).

Almost surely, 2^40948931 is an apocalyptic number.

40948931 is a deficient number, since it is larger than the sum of its proper divisors (1).

40948931 is an equidigital number, since it uses as much as digits as its factorization.

40948931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 40948931 is about 6399.1351759437. The cubic root of 40948931 is about 344.6784962566.

The spelling of 40948931 in words is "forty million, nine hundred forty-eight thousand, nine hundred thirty-one".