40964261 has 4 divisors (see below), whose sum is σ = 44115372. Its totient is φ = 37813152.

The previous prime is 40964257. The next prime is 40964263. The reversal of 40964261 is 16246904.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20884900 + 20079361 = 4570^2 + 4481^2 .

It is not a de Polignac number, because 40964261 - 2² = 40964257 is a prime.

It is a super-2 number, since 2×40964261² = 3356141358552242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40964263) 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, 1575536 + ... + 1575561.

It is an arithmetic number, because the mean of its divisors is an integer number (11028843).

Almost surely, 2^40964261 is an apocalyptic number.

It is an amenable number.

40964261 is a deficient number, since it is larger than the sum of its proper divisors (3151111).

40964261 is a wasteful number, since it uses less digits than its factorization.

40964261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151110.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40964261 is about 6400.3328819679. The cubic root of 40964261 is about 344.7215031758.

The spelling of 40964261 in words is "forty million, nine hundred sixty-four thousand, two hundred sixty-one".