40015321429 has 8 divisors (see below), whose sum is σ = 42379225920. Its totient is φ = 37652534976.

The previous prime is 40015321427. The next prime is 40015321471. The reversal of 40015321429 is 92412351004.

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 40015321429 - 2¹ = 40015321427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40015321429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40015321421) 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, 205249 + ... + 349510.

It is an arithmetic number, because the mean of its divisors is an integer number (5297403240).

Almost surely, 2^40015321429 is an apocalyptic number.

It is an amenable number.

40015321429 is a deficient number, since it is larger than the sum of its proper divisors (2363904491).

40015321429 is a wasteful number, since it uses less digits than its factorization.

40015321429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559019.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 40015321429 in words is "forty billion, fifteen million, three hundred twenty-one thousand, four hundred twenty-nine".