1402022402 has 24 divisors (see below), whose sum is σ = 2447582508. Its totient is φ = 599793920.

The previous prime is 1402022393. The next prime is 1402022423. The reversal of 1402022402 is 2042202041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1342562881 + 59459521 = 36641^2 + 7711^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166283 + ... + 174510.

Almost surely, 2^1402022402 is an apocalyptic number.

1402022402 is a deficient number, since it is larger than the sum of its proper divisors (1045560106).

1402022402 is a wasteful number, since it uses less digits than its factorization.

1402022402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340834 (or 340823 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1402022402 is about 37443.5895982209. The cubic root of 1402022402 is about 1119.2273587976.

Adding to 1402022402 its reverse (2042202041), we get a palindrome (3444224443).

The spelling of 1402022402 in words is "one billion, four hundred two million, twenty-two thousand, four hundred two".