1227540016 has 40 divisors (see below), whose sum is σ = 2419157664. Its totient is φ = 603294720.

The previous prime is 1227539993. The next prime is 1227540019. The reversal of 1227540016 is 6100457221.

It is not an unprimeable number, because it can be changed into a prime (1227540019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422280 + ... + 425176.

Almost surely, 2^1227540016 is an apocalyptic number.

1227540016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1227540016 is a deficient number, since it is larger than the sum of its proper divisors (1191617648).

1227540016 is a wasteful number, since it uses less digits than its factorization.

1227540016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1227540016 is about 35036.2671527661. The cubic root of 1227540016 is about 1070.7265034371.

Adding to 1227540016 its reverse (6100457221), we get a palindrome (7327997237).

The spelling of 1227540016 in words is "one billion, two hundred twenty-seven million, five hundred forty thousand, sixteen".