1226667465 has 24 divisors (see below), whose sum is σ = 2128476168. Its totient is φ = 653529600.

The previous prime is 1226667413. The next prime is 1226667469. The reversal of 1226667465 is 5647666221.

It can be written as a sum of positive squares in 4 ways, for example, as 658846224 + 567821241 = 25668^2 + 23829^2 .

It is not a de Polignac number, because 1226667465 - 2⁹ = 1226666953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1226667465.

It is not an unprimeable number, because it can be changed into a prime (1226667469) 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, 30015 + ... + 57915.

It is an arithmetic number, because the mean of its divisors is an integer number (88686507).

Almost surely, 2^1226667465 is an apocalyptic number.

1226667465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226667465 is a deficient number, since it is larger than the sum of its proper divisors (901808703).

1226667465 is a wasteful number, since it uses less digits than its factorization.

1226667465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28889 (or 28886 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 1226667465 is about 35023.8128278461. The cubic root of 1226667465 is about 1070.4727479807.

The spelling of 1226667465 in words is "one billion, two hundred twenty-six million, six hundred sixty-seven thousand, four hundred sixty-five".