40023929 has 8 divisors (see below), whose sum is σ = 44261472. Its totient is φ = 35886240.

The previous prime is 40023917. The next prime is 40023941. The reversal of 40023929 is 92932004.

It is an interprime number because it is at equal distance from previous prime (40023917) and next prime (40023941).

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 40023929 - 2¹⁶ = 39958393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40023989) 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, 24119 + ... + 25724.

It is an arithmetic number, because the mean of its divisors is an integer number (5532684).

Almost surely, 2^40023929 is an apocalyptic number.

It is an amenable number.

40023929 is a deficient number, since it is larger than the sum of its proper divisors (4237543).

40023929 is a wasteful number, since it uses less digits than its factorization.

40023929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49927.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40023929 is about 6326.4467910510. The cubic root of 40023929 is about 342.0633724316.

The spelling of 40023929 in words is "forty million, twenty-three thousand, nine hundred twenty-nine".