40791038 has 4 divisors (see below), whose sum is σ = 61186560. Its totient is φ = 20395518.

The previous prime is 40791031. The next prime is 40791053. The reversal of 40791038 is 83019704.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40791038² = 3327817562234888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40790995 and 40791013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40791031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10197758 + ... + 10197761.

It is an arithmetic number, because the mean of its divisors is an integer number (15296640).

Almost surely, 2^40791038 is an apocalyptic number.

40791038 is a deficient number, since it is larger than the sum of its proper divisors (20395522).

40791038 is a wasteful number, since it uses less digits than its factorization.

40791038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20395521.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 40791038 is about 6386.7862027784. The cubic root of 40791038 is about 344.2349159332.

The spelling of 40791038 in words is "forty million, seven hundred ninety-one thousand, thirty-eight".