1228609532 has 6 divisors (see below), whose sum is σ = 2150066688. Its totient is φ = 614304764.

The previous prime is 1228609517. The next prime is 1228609553. The reversal of 1228609532 is 2359068221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153576188 + ... + 153576195.

It is an arithmetic number, because the mean of its divisors is an integer number (358344448).

Almost surely, 2^1228609532 is an apocalyptic number.

It is an amenable number.

1228609532 is a deficient number, since it is larger than the sum of its proper divisors (921457156).

1228609532 is a wasteful number, since it uses less digits than its factorization.

1228609532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307152387 (or 307152385 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1228609532 is about 35051.5268141061. The cubic root of 1228609532 is about 1071.0373763191.

The spelling of 1228609532 in words is "one billion, two hundred twenty-eight million, six hundred nine thousand, five hundred thirty-two".