1402099566 has 64 divisors (see below), whose sum is σ = 3389030400. Its totient is φ = 377765856.

The previous prime is 1402099561. The next prime is 1402099583. The reversal of 1402099566 is 6659902041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402099561) by changing a digit.

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, 174015 + ... + 181893.

It is an arithmetic number, because the mean of its divisors is an integer number (52953600).

Almost surely, 2^1402099566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402099566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694515200).

1402099566 is an abundant number, since it is smaller than the sum of its proper divisors (1986930834).

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

1402099566 is a wasteful number, since it uses less digits than its factorization.

1402099566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8133.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1402099566 is about 37444.6199873894. The cubic root of 1402099566 is about 1119.2478916306.

The spelling of 1402099566 in words is "one billion, four hundred two million, ninety-nine thousand, five hundred sixty-six".