40154761 has 8 divisors (see below), whose sum is σ = 41010624. Its totient is φ = 39302640.

The previous prime is 40154749. The next prime is 40154767. The reversal of 40154761 is 16745104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40154761 - 2⁹ = 40154249 is a prime.

It is a super-2 number, since 2×40154761² = 3224809661934242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40154767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33706 + ... + 34876.

It is an arithmetic number, because the mean of its divisors is an integer number (5126328).

Almost surely, 2^40154761 is an apocalyptic number.

It is an amenable number.

40154761 is a deficient number, since it is larger than the sum of its proper divisors (855863).

40154761 is a wasteful number, since it uses less digits than its factorization.

40154761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 40154761 is about 6336.7784401855. The cubic root of 40154761 is about 342.4356843732.

Adding to 40154761 its reverse (16745104), we get a palindrome (56899865).

The spelling of 40154761 in words is "forty million, one hundred fifty-four thousand, seven hundred sixty-one".