1228877492400 has 480 divisors, whose sum is σ = 4503896404800. Its totient is φ = 318007296000.

The previous prime is 1228877492387. The next prime is 1228877492429. The reversal of 1228877492400 is 42947788221.

1228877492400 is a `hidden beast` number, since 1 + 2 + 2 + 8 + 87 + 74 + 92 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 160235766 + ... + 160243434.

It is an arithmetic number, because the mean of its divisors is an integer number (9383117510).

Almost surely, 2^{1228877492400} is an apocalyptic number.

1228877492400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1228877492400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2251948202400).

1228877492400 is an abundant number, since it is smaller than the sum of its proper divisors (3275018912400).

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

1228877492400 is a wasteful number, since it uses less digits than its factorization.

1228877492400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134 (or 8117 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 1228877492400 in words is "one trillion, two hundred twenty-eight billion, eight hundred seventy-seven million, four hundred ninety-two thousand, four hundred".