40912481 has 4 divisors (see below), whose sum is σ = 40927764. Its totient is φ = 40897200.

The previous prime is 40912477. The next prime is 40912483. The reversal of 40912481 is 18421904.

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 6806881 + 34105600 = 2609^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 40912481 - 2² = 40912477 is a prime.

It is a super-2 number, since 2×40912481² = 3347662203150722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40912483) 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, 2450 + ... + 9371.

It is an arithmetic number, because the mean of its divisors is an integer number (10231941).

Almost surely, 2^40912481 is an apocalyptic number.

It is an amenable number.

40912481 is a deficient number, since it is larger than the sum of its proper divisors (15283).

40912481 is a wasteful number, since it uses less digits than its factorization.

40912481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15282.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 40912481 is about 6396.2865007753. The cubic root of 40912481 is about 344.5761959810.

The spelling of 40912481 in words is "forty million, nine hundred twelve thousand, four hundred eighty-one".