1000436022 has 40 divisors (see below), whose sum is σ = 2293866696. Its totient is φ = 325721088.

The previous prime is 1000435993. The next prime is 1000436029. The reversal of 1000436022 is 2206340001.

It is a happy number.

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 = 1000435986 and 1000436004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000436029) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64843 + ... + 78774.

Almost surely, 2^1000436022 is an apocalyptic number.

1000436022 is an abundant number, since it is smaller than the sum of its proper divisors (1293430674).

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

1000436022 is a wasteful number, since it uses less digits than its factorization.

1000436022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143674 (or 143665 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1000436022 is about 31629.6699635010. The cubic root of 1000436022 is about 1000.1453195479.

Adding to 1000436022 its reverse (2206340001), we get a palindrome (3206776023).

The spelling of 1000436022 in words is "one billion, four hundred thirty-six thousand, twenty-two".