1402440564 has 96 divisors (see below), whose sum is σ = 3870720000. Its totient is φ = 394971360.

The previous prime is 1402440541. The next prime is 1402440601. The reversal of 1402440564 is 4650442041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289837 + ... + 294635.

It is an arithmetic number, because the mean of its divisors is an integer number (40320000).

Almost surely, 2^1402440564 is an apocalyptic number.

1402440564 is a gapful number since it is divisible by the number (14) 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 1402440564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935360000).

1402440564 is an abundant number, since it is smaller than the sum of its proper divisors (2468279436).

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

1402440564 is a wasteful number, since it uses less digits than its factorization.

1402440564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 1402440564 is about 37449.1730749826. The cubic root of 1402440564 is about 1119.3386199368.

The spelling of 1402440564 in words is "one billion, four hundred two million, four hundred forty thousand, five hundred sixty-four".