1402069440 has 112 divisors (see below), whose sum is σ = 4476719520. Its totient is φ = 371773440.

The previous prime is 1402069433. The next prime is 1402069477. The reversal of 1402069440 is 449602041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1402069398 and 1402069407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169726 + ... + 177794.

It is an arithmetic number, because the mean of its divisors is an integer number (39970710).

Almost surely, 2^1402069440 is an apocalyptic number.

1402069440 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 1402069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2238359760).

1402069440 is an abundant number, since it is smaller than the sum of its proper divisors (3074650080).

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

1402069440 is a wasteful number, since it uses less digits than its factorization.

1402069440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270 (or 8260 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1402069440 is about 37444.2177111500. The cubic root of 1402069440 is about 1119.2398753898.

The spelling of 1402069440 in words is "one billion, four hundred two million, sixty-nine thousand, four hundred forty".