40399041628 has 24 divisors (see below), whose sum is σ = 78919061760. Its totient is φ = 17936148720.

The previous prime is 40399041583. The next prime is 40399041719. The reversal of 40399041628 is 82614099304.

It is a congruent number.

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, 10674388 + ... + 10678171.

It is an arithmetic number, because the mean of its divisors is an integer number (3288294240).

Almost surely, 2^40399041628 is an apocalyptic number.

It is an amenable number.

40399041628 is a deficient number, since it is larger than the sum of its proper divisors (38520020132).

40399041628 is a wasteful number, since it uses less digits than its factorization.

40399041628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21352617 (or 21352615 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 40399041628 in words is "forty billion, three hundred ninety-nine million, forty-one thousand, six hundred twenty-eight".