1217948274 has 24 divisors (see below), whose sum is σ = 2724014592. Its totient is φ = 392886360.

The previous prime is 1217948273. The next prime is 1217948287. The reversal of 1217948274 is 4728497121.

It is not an unprimeable number, because it can be changed into a prime (1217948273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1090794 + ... + 1091909.

It is an arithmetic number, because the mean of its divisors is an integer number (113500608).

Almost surely, 2^1217948274 is an apocalyptic number.

1217948274 is an abundant number, since it is smaller than the sum of its proper divisors (1506066318).

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

1217948274 is a wasteful number, since it uses less digits than its factorization.

1217948274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182742 (or 2182739 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 1217948274 is about 34899.1156621482. The cubic root of 1217948274 is about 1067.9303967180.

The spelling of 1217948274 in words is "one billion, two hundred seventeen million, nine hundred forty-eight thousand, two hundred seventy-four".