1217400496 has 20 divisors (see below), whose sum is σ = 2540153392. Its totient is φ = 561877056.

The previous prime is 1217400493. The next prime is 1217400497. The reversal of 1217400496 is 6940047121.

It is a super-2 number, since 2×1217400496² = 2964127935322092032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1217400491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926236 + ... + 2926651.

Almost surely, 2^1217400496 is an apocalyptic number.

1217400496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1217400496 is an abundant number, since it is smaller than the sum of its proper divisors (1322752896).

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

1217400496 is a wasteful number, since it uses less digits than its factorization.

1217400496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852908 (or 5852902 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1217400496 is about 34891.2667583165. The cubic root of 1217400496 is about 1067.7702704598.

The spelling of 1217400496 in words is "one billion, two hundred seventeen million, four hundred thousand, four hundred ninety-six".