40598621540 has 12 divisors (see below), whose sum is σ = 85257105276. Its totient is φ = 16239448608.

The previous prime is 40598621533. The next prime is 40598621551. The reversal of 40598621540 is 4512689504.

It can be written as a sum of positive squares in 2 ways, for example, as 14248241956 + 26350379584 = 119366^2 + 162328^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40598621491 and 40598621500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014965519 + ... + 1014965558.

It is an arithmetic number, because the mean of its divisors is an integer number (7104758773).

Almost surely, 2^40598621540 is an apocalyptic number.

It is an amenable number.

40598621540 is an abundant number, since it is smaller than the sum of its proper divisors (44658483736).

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

40598621540 is a wasteful number, since it uses less digits than its factorization.

40598621540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029931086 (or 2029931084 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 40598621540 in words is "forty billion, five hundred ninety-eight million, six hundred twenty-one thousand, five hundred forty".