1274478906 has 8 divisors (see below), whose sum is σ = 2548957824. Its totient is φ = 424826300.

The previous prime is 1274478893. The next prime is 1274478911. The reversal of 1274478906 is 6098744721.

It is a sphenic number, since it is the product of 3 distinct primes.

1274478906 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106206570 + ... + 106206581.

It is an arithmetic number, because the mean of its divisors is an integer number (318619728).

Almost surely, 2^1274478906 is an apocalyptic number.

1274478906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1274478906 is a wasteful number, since it uses less digits than its factorization.

1274478906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212413156.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 1274478906 is about 35699.8446215106. The cubic root of 1274478906 is about 1084.2036972586.

The spelling of 1274478906 in words is "one billion, two hundred seventy-four million, four hundred seventy-eight thousand, nine hundred six".