1322940465 has 96 divisors (see below), whose sum is σ = 2984757120. Its totient is φ = 549763200.

The previous prime is 1322940449. The next prime is 1322940467. The reversal of 1322940465 is 5640492231.

It is a happy number.

1322940465 is a `hidden beast` number, since 132 + 29 + 40 + 465 = 666.

1322940465 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1322940465 - 2⁴ = 1322940449 is a prime.

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 not an unprimeable number, because it can be changed into a prime (1322940467) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63675 + ... + 81855.

It is an arithmetic number, because the mean of its divisors is an integer number (31091220).

Almost surely, 2^1322940465 is an apocalyptic number.

1322940465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1322940465 is an abundant number, since it is smaller than the sum of its proper divisors (1661816655).

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

1322940465 is a wasteful number, since it uses less digits than its factorization.

1322940465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18220 (or 18207 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1322940465 is about 36372.2485557327. The cubic root of 1322940465 is about 1097.7752458842.

The spelling of 1322940465 in words is "one billion, three hundred twenty-two million, nine hundred forty thousand, four hundred sixty-five".