40124993 has 4 divisors (see below), whose sum is σ = 40293120. Its totient is φ = 39956868.

The previous prime is 40124963. The next prime is 40125023. The reversal of 40124993 is 39942104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40124963) and next prime (40125023).

It is a cyclic number.

It is not a de Polignac number, because 40124993 - 2⁸ = 40124737 is a prime.

It is a super-2 number, since 2×40124993² = 3220030126500098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40124963) 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, 83705 + ... + 84182.

It is an arithmetic number, because the mean of its divisors is an integer number (10073280).

Almost surely, 2^40124993 is an apocalyptic number.

It is an amenable number.

40124993 is a deficient number, since it is larger than the sum of its proper divisors (168127).

40124993 is a wasteful number, since it uses less digits than its factorization.

40124993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168126.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 40124993 is about 6334.4291771240. The cubic root of 40124993 is about 342.3510439703.

The spelling of 40124993 in words is "forty million, one hundred twenty-four thousand, nine hundred ninety-three".