1403782866990 has 384 divisors, whose sum is σ = 4376550776832. Its totient is φ = 305453998080.

The previous prime is 1403782866989. The next prime is 1403782867007. The reversal of 1403782866990 is 996682873041.

1403782866990 is a `hidden beast` number, since 1 + 40 + 378 + 2 + 86 + 69 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 302341609 + ... + 302346251.

It is an arithmetic number, because the mean of its divisors is an integer number (11397267648).

Almost surely, 2^{1403782866990} is an apocalyptic number.

1403782866990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1403782866990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2188275388416).

1403782866990 is an abundant number, since it is smaller than the sum of its proper divisors (2972767909842).

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

1403782866990 is a wasteful number, since it uses less digits than its factorization.

1403782866990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 4941 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 1403782866990 in words is "one trillion, four hundred three billion, seven hundred eighty-two million, eight hundred sixty-six thousand, nine hundred ninety".