40140737 has 8 divisors (see below), whose sum is σ = 49404096. Its totient is φ = 31759632.

The previous prime is 40140721. The next prime is 40140761. The reversal of 40140737 is 73704104.

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 40140737 - 2⁴ = 40140721 is a prime.

It is a super-2 number, since 2×40140737² = 3222557533806338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40140337) 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, 220463 + ... + 220644.

It is an arithmetic number, because the mean of its divisors is an integer number (6175512).

Almost surely, 2^40140737 is an apocalyptic number.

It is an amenable number.

40140737 is a deficient number, since it is larger than the sum of its proper divisors (9263359).

40140737 is a wasteful number, since it uses less digits than its factorization.

40140737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441127.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 40140737 is about 6335.6717875850. The cubic root of 40140737 is about 342.3958146534.

The spelling of 40140737 in words is "forty million, one hundred forty thousand, seven hundred thirty-seven".