1225327392 has 192 divisors, whose sum is σ = 3760162560. Its totient is φ = 387459072.

The previous prime is 1225327391. The next prime is 1225327393. The reversal of 1225327392 is 2937235221.

It is a happy number.

1225327392 is a `hidden beast` number, since 12 + 253 + 2 + 7 + 392 = 666.

It is an interprime number because it is at equal distance from previous prime (1225327391) and next prime (1225327393).

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 (1225327391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3914628 + ... + 3914940.

It is an arithmetic number, because the mean of its divisors is an integer number (19584180).

Almost surely, 2^1225327392 is an apocalyptic number.

1225327392 is a gapful number since it is divisible by the number (12) 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 1225327392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880081280).

1225327392 is an abundant number, since it is smaller than the sum of its proper divisors (2534835168).

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

1225327392 is a wasteful number, since it uses less digits than its factorization.

1225327392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 538 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 1225327392 is about 35004.6767161189. The cubic root of 1225327392 is about 1070.0827932558.

The spelling of 1225327392 in words is "one billion, two hundred twenty-five million, three hundred twenty-seven thousand, three hundred ninety-two".