1302040422 has 24 divisors (see below), whose sum is σ = 2855079864. Its totient is φ = 428783904.

The previous prime is 1302040391. The next prime is 1302040423. The reversal of 1302040422 is 2240402031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1302040395 and 1302040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302040423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434263 + ... + 437250.

It is an arithmetic number, because the mean of its divisors is an integer number (118961661).

Almost surely, 2^1302040422 is an apocalyptic number.

1302040422 is an abundant number, since it is smaller than the sum of its proper divisors (1553039442).

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

1302040422 is a wasteful number, since it uses less digits than its factorization.

1302040422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871604 (or 871601 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1302040422 is about 36083.7972225762. The cubic root of 1302040422 is about 1091.9635851078.

Adding to 1302040422 its reverse (2240402031), we get a palindrome (3542442453).

The spelling of 1302040422 in words is "one billion, three hundred two million, forty thousand, four hundred twenty-two".