1220434492 has 48 divisors (see below), whose sum is σ = 2283109920. Its totient is φ = 569721600.

The previous prime is 1220434489. The next prime is 1220434493. The reversal of 1220434492 is 2944340221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220434493) 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, 776067 + ... + 777637.

It is an arithmetic number, because the mean of its divisors is an integer number (47564790).

Almost surely, 2^1220434492 is an apocalyptic number.

It is an amenable number.

1220434492 is a deficient number, since it is larger than the sum of its proper divisors (1062675428).

1220434492 is a wasteful number, since it uses less digits than its factorization.

1220434492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 1220434492 is about 34934.7175743557. The cubic root of 1220434492 is about 1068.6565641695.

The spelling of 1220434492 in words is "one billion, two hundred twenty million, four hundred thirty-four thousand, four hundred ninety-two".