1403506469640 has 128 divisors (see below), whose sum is σ = 4835046297600. Its totient is φ = 322336408320.

The previous prime is 1403506469609. The next prime is 1403506469647. The reversal of 1403506469640 is 469646053041.

It is a self number, because there is not a number n which added to its sum of digits gives 1403506469640.

It is not an unprimeable number, because it can be changed into a prime (1403506469647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27955512 + ... + 28005671.

It is an arithmetic number, because the mean of its divisors is an integer number (37773799200).

Almost surely, 2^{1403506469640} is an apocalyptic number.

1403506469640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1403506469640 is an abundant number, since it is smaller than the sum of its proper divisors (3431539827960).

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

1403506469640 is a wasteful number, since it uses less digits than its factorization.

1403506469640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55961227 (or 55961223 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 1403506469640 in words is "one trillion, four hundred three billion, five hundred six million, four hundred sixty-nine thousand, six hundred forty".