1073691228 has 12 divisors (see below), whose sum is σ = 2505279560. Its totient is φ = 357897072.

The previous prime is 1073691211. The next prime is 1073691233. The reversal of 1073691228 is 8221963701.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent 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, 44737123 + ... + 44737146.

Almost surely, 2^1073691228 is an apocalyptic number.

It is an amenable number.

1073691228 is an abundant number, since it is smaller than the sum of its proper divisors (1431588332).

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

1073691228 is a wasteful number, since it uses less digits than its factorization.

1073691228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89474276 (or 89474274 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1073691228 is about 32767.2279572136. The cubic root of 1073691228 is about 1023.9839157121.

The spelling of 1073691228 in words is "one billion, seventy-three million, six hundred ninety-one thousand, two hundred twenty-eight".