1227493404 has 72 divisors (see below), whose sum is σ = 3271107840. Its totient is φ = 387040032.

The previous prime is 1227493403. The next prime is 1227493427. The reversal of 1227493404 is 4043947221.

1227493404 is a `hidden beast` number, since 122 + 7 + 493 + 40 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227493403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 753639 + ... + 755265.

Almost surely, 2^1227493404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227493404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1635553920).

1227493404 is an abundant number, since it is smaller than the sum of its proper divisors (2043614436).

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

1227493404 is a wasteful number, since it uses less digits than its factorization.

1227493404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 1227493404 is about 35035.6019500165. The cubic root of 1227493404 is about 1070.7129507667.

The spelling of 1227493404 in words is "one billion, two hundred twenty-seven million, four hundred ninety-three thousand, four hundred four".