40761291 has 16 divisors (see below), whose sum is σ = 58886784. Its totient is φ = 24979584.

The previous prime is 40761241. The next prime is 40761317. The reversal of 40761291 is 19216704.

It is a happy number.

It is not a de Polignac number, because 40761291 - 2⁹ = 40760779 is a prime.

It is a super-2 number, since 2×40761291² = 3322965687973362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40761241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7101 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (3680424).

Almost surely, 2^40761291 is an apocalyptic number.

40761291 is a deficient number, since it is larger than the sum of its proper divisors (18125493).

40761291 is a wasteful number, since it uses less digits than its factorization.

40761291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18650.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 40761291 is about 6384.4569855235. The cubic root of 40761291 is about 344.1512174320.

Adding to 40761291 its reverse (19216704), we get a palindrome (59977995).

The spelling of 40761291 in words is "forty million, seven hundred sixty-one thousand, two hundred ninety-one".