1402311040 has 128 divisors (see below), whose sum is σ = 3727422720. Its totient is φ = 500981760.

The previous prime is 1402311023. The next prime is 1402311049. The reversal of 1402311040 is 401132041.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402311049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255202 + ... + 260638.

It is an arithmetic number, because the mean of its divisors is an integer number (29120490).

Almost surely, 2^1402311040 is an apocalyptic number.

1402311040 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 1402311040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863711360).

1402311040 is an abundant number, since it is smaller than the sum of its proper divisors (2325111680).

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

1402311040 is a wasteful number, since it uses less digits than its factorization.

1402311040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500 (or 5488 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1402311040 is about 37447.4437044773. The cubic root of 1402311040 is about 1119.3041596103.

Adding to 1402311040 its reverse (401132041), we get a palindrome (1803443081).

The spelling of 1402311040 in words is "one billion, four hundred two million, three hundred eleven thousand, forty".