1228877948 has 12 divisors (see below), whose sum is σ = 2244038160. Its totient is φ = 587724192.

The previous prime is 1228877941. The next prime is 1228877959. The reversal of 1228877948 is 8497788221.

It is a super-2 number, since 2×1228877948² = 3020282022161381408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1228877893 and 1228877902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228877941) 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, 6678593 + ... + 6678776.

It is an arithmetic number, because the mean of its divisors is an integer number (187003180).

Almost surely, 2^1228877948 is an apocalyptic number.

It is an amenable number.

1228877948 is a deficient number, since it is larger than the sum of its proper divisors (1015160212).

1228877948 is a wasteful number, since it uses less digits than its factorization.

1228877948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357396 (or 13357394 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The square root of 1228877948 is about 35055.3554824366. The cubic root of 1228877948 is about 1071.1153676385.

The spelling of 1228877948 in words is "one billion, two hundred twenty-eight million, eight hundred seventy-seven thousand, nine hundred forty-eight".