19419410240 has 56 divisors (see below), whose sum is σ = 46580112072. Its totient is φ = 7711047680.

The previous prime is 19419410221. The next prime is 19419410281. The reversal of 19419410240 is 4201491491.

It can be written as a sum of positive squares in 4 ways, for example, as 430336 + 19418979904 = 656^2 + 139352^2 .

It is a super-2 number, since 2×19419410240² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19419410240.

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, 177641 + ... + 265320.

Almost surely, 2^19419410240 is an apocalyptic number.

19419410240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19419410240 is an abundant number, since it is smaller than the sum of its proper divisors (27160701832).

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

19419410240 is a wasteful number, since it uses less digits than its factorization.

19419410240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443115 (or 443105 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 19419410240 in words is "nineteen billion, four hundred nineteen million, four hundred ten thousand, two hundred forty".