1020402322 has 32 divisors (see below), whose sum is σ = 1674052272. Its totient is φ = 464615424.

The previous prime is 1020402319. The next prime is 1020402329. The reversal of 1020402322 is 2232040201.

It can be written as a sum of positive squares in 8 ways, for example, as 923005161 + 97397161 = 30381^2 + 9869^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020402296 and 1020402305.

It is not an unprimeable number, because it can be changed into a prime (1020402329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127668 + ... + 135424.

Almost surely, 2^1020402322 is an apocalyptic number.

1020402322 is a deficient number, since it is larger than the sum of its proper divisors (653649950).

1020402322 is a wasteful number, since it uses less digits than its factorization.

1020402322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7902.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1020402322 is about 31943.7368196021. The cubic root of 1020402322 is about 1006.7550406799.

Adding to 1020402322 its reverse (2232040201), we get a palindrome (3252442523).

The spelling of 1020402322 in words is "one billion, twenty million, four hundred two thousand, three hundred twenty-two".