40531144530 has 32 divisors (see below), whose sum is σ = 97692251904. Its totient is φ = 10761915776.

The previous prime is 40531144523. The next prime is 40531144579. The reversal of 40531144530 is 3544113504.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2892234 + ... + 2906213.

It is an arithmetic number, because the mean of its divisors is an integer number (3052882872).

Almost surely, 2^40531144530 is an apocalyptic number.

40531144530 is an abundant number, since it is smaller than the sum of its proper divisors (57161107374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40531144530 is a wasteful number, since it uses less digits than its factorization.

40531144530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798690.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 40531144530 in words is "forty billion, five hundred thirty-one million, one hundred forty-four thousand, five hundred thirty".