1402104440 has 96 divisors (see below), whose sum is σ = 3548769840. Its totient is φ = 497925120.

The previous prime is 1402104439. The next prime is 1402104463. The reversal of 1402104440 is 444012041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204752 + ... + 211488.

Almost surely, 2^1402104440 is an apocalyptic number.

1402104440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402104440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774384920).

1402104440 is an abundant number, since it is smaller than the sum of its proper divisors (2146665400).

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

1402104440 is a wasteful number, since it uses less digits than its factorization.

1402104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813 (or 6798 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1402104440 is about 37444.6850701138. The cubic root of 1402104440 is about 1119.2491885447.

Adding to 1402104440 its reverse (444012041), we get a palindrome (1846116481).

The spelling of 1402104440 in words is "one billion, four hundred two million, one hundred four thousand, four hundred forty".