1402441440 has 48 divisors (see below), whose sum is σ = 4417692048. Its totient is φ = 373984256.

The previous prime is 1402441429. The next prime is 1402441483. The reversal of 1402441440 is 441442041.

It is a happy number.

1402441440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1402441440.

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, 1460397 + ... + 1461356.

It is an arithmetic number, because the mean of its divisors is an integer number (92035251).

Almost surely, 2^1402441440 is an apocalyptic number.

1402441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402441440 is an abundant number, since it is smaller than the sum of its proper divisors (3015250608).

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

1402441440 is a wasteful number, since it uses less digits than its factorization.

1402441440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921771 (or 2921763 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1402441440 is about 37449.1847708331. The cubic root of 1402441440 is about 1119.3388529925.

Adding to 1402441440 its reverse (441442041), we get a palindrome (1843883481).

The spelling of 1402441440 in words is "one billion, four hundred two million, four hundred forty-one thousand, four hundred forty".