40641352428 has 24 divisors (see below), whose sum is σ = 95768734320. Its totient is φ = 13412987200.

The previous prime is 40641352387. The next prime is 40641352471. The reversal of 40641352428 is 82425314604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16765023 + ... + 16767446.

It is an arithmetic number, because the mean of its divisors is an integer number (3990363930).

Almost surely, 2^40641352428 is an apocalyptic number.

It is an amenable number.

40641352428 is an abundant number, since it is smaller than the sum of its proper divisors (55127381892).

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

40641352428 is a wasteful number, since it uses less digits than its factorization.

40641352428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33532577 (or 33532575 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 40641352428 in words is "forty billion, six hundred forty-one million, three hundred fifty-two thousand, four hundred twenty-eight".