40215231542 has 8 divisors (see below), whose sum is σ = 60659847000. Its totient is φ = 19995282544.

The previous prime is 40215231541. The next prime is 40215231547. The reversal of 40215231542 is 24513251204.

40215231542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40215231541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56166167 + ... + 56166882.

It is an arithmetic number, because the mean of its divisors is an integer number (7582480875).

Almost surely, 2^40215231542 is an apocalyptic number.

40215231542 is a deficient number, since it is larger than the sum of its proper divisors (20444615458).

40215231542 is a wasteful number, since it uses less digits than its factorization.

40215231542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112333230.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 40215231542 its reverse (24513251204), we get a palindrome (64728482746).

The spelling of 40215231542 in words is "forty billion, two hundred fifteen million, two hundred thirty-one thousand, five hundred forty-two".