1228923000 has 96 divisors (see below), whose sum is σ = 4153790160. Its totient is φ = 327710400.

The previous prime is 1228922969. The next prime is 1228923023. The reversal of 1228923000 is 3298221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59274 + ... + 77273.

Almost surely, 2^1228923000 is an apocalyptic number.

1228923000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1228923000 is an abundant number, since it is smaller than the sum of its proper divisors (2924867160).

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

1228923000 is a wasteful number, since it uses less digits than its factorization.

1228923000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136574 (or 136557 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1228923000 is about 35055.9980602464. The cubic root of 1228923000 is about 1071.1284568961.

The spelling of 1228923000 in words is "one billion, two hundred twenty-eight million, nine hundred twenty-three thousand".