1022790436 has 12 divisors (see below), whose sum is σ = 1803977728. Its totient is φ = 507368232.

The previous prime is 1022790421. The next prime is 1022790437. The reversal of 1022790436 is 6340972201.

It is a super-2 number, since 2×1022790436² = 2092200551946140192, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1022790437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006176 + ... + 1007191.

Almost surely, 2^1022790436 is an apocalyptic number.

It is an amenable number.

1022790436 is a deficient number, since it is larger than the sum of its proper divisors (781187292).

1022790436 is a wasteful number, since it uses less digits than its factorization.

1022790436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013498 (or 2013496 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1022790436 is about 31981.0949781273. The cubic root of 1022790436 is about 1007.5398202340.

The spelling of 1022790436 in words is "one billion, twenty-two million, seven hundred ninety thousand, four hundred thirty-six".