1220303692 has 6 divisors (see below), whose sum is σ = 2135531468. Its totient is φ = 610151844.

The previous prime is 1220303683. The next prime is 1220303699. The reversal of 1220303692 is 2963030221.

It is a super-2 number, since 2×1220303692² = 2978282201417661728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220303692.

It is not an unprimeable number, because it can be changed into a prime (1220303699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152537958 + ... + 152537965.

Almost surely, 2^1220303692 is an apocalyptic number.

It is an amenable number.

1220303692 is a deficient number, since it is larger than the sum of its proper divisors (915227776).

1220303692 is a wasteful number, since it uses less digits than its factorization.

1220303692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305075927 (or 305075925 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1220303692 is about 34932.8454609698. The cubic root of 1220303692 is about 1068.6183850692.

The spelling of 1220303692 in words is "one billion, two hundred twenty million, three hundred three thousand, six hundred ninety-two".