1402645344 has 96 divisors (see below), whose sum is σ = 3811820544. Its totient is φ = 451146240.

The previous prime is 1402645339. The next prime is 1402645357. The reversal of 1402645344 is 4435462041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1402645344² = 3934827922089756672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1913202 + ... + 1913934.

It is an arithmetic number, because the mean of its divisors is an integer number (39706464).

Almost surely, 2^1402645344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402645344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905910272).

1402645344 is an abundant number, since it is smaller than the sum of its proper divisors (2409175200).

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

1402645344 is a wasteful number, since it uses less digits than its factorization.

1402645344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 1402645344 is about 37451.9070809485. The cubic root of 1402645344 is about 1119.3930980641.

The spelling of 1402645344 in words is "one billion, four hundred two million, six hundred forty-five thousand, three hundred forty-four".