1340478522 has 24 divisors (see below), whose sum is σ = 2917061940. Its totient is φ = 444873600.

The previous prime is 1340478499. The next prime is 1340478541. The reversal of 1340478522 is 2258740431.

It is a happy number.

1340478522 is a `hidden beast` number, since 134 + 0 + 478 + 52 + 2 = 666.

1340478522 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1260179001 + 80299521 = 35499^2 + 8961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158479 + ... + 166722.

Almost surely, 2^1340478522 is an apocalyptic number.

1340478522 is an abundant number, since it is smaller than the sum of its proper divisors (1576583418).

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

1340478522 is a wasteful number, since it uses less digits than its factorization.

1340478522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325438 (or 325435 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1340478522 is about 36612.5459644641. The cubic root of 1340478522 is about 1102.6049891533.

The spelling of 1340478522 in words is "one billion, three hundred forty million, four hundred seventy-eight thousand, five hundred twenty-two".