40140629 has 8 divisors (see below), whose sum is σ = 42400512. Its totient is φ = 37941120.

The previous prime is 40140601. The next prime is 40140641. The reversal of 40140629 is 92604104.

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 40140629 - 2¹² = 40136533 is a prime.

It is a super-2 number, since 2×40140629² = 3222540193031282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40140598 and 40140607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140649) 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, 13724 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (5300064).

Almost surely, 2^40140629 is an apocalyptic number.

It is an amenable number.

40140629 is a deficient number, since it is larger than the sum of its proper divisors (2259883).

40140629 is a wasteful number, since it uses less digits than its factorization.

40140629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30187.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40140629 is about 6335.6632644104. The cubic root of 40140629 is about 342.3955075773.

The spelling of 40140629 in words is "forty million, one hundred forty thousand, six hundred twenty-nine".