1340551404 has 24 divisors (see below), whose sum is σ = 3475503920. Its totient is φ = 446850432.

The previous prime is 1340551397. The next prime is 1340551409. The reversal of 1340551404 is 4041550431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1340551409) 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, 6206149 + ... + 6206364.

Almost surely, 2^1340551404 is an apocalyptic number.

It is an amenable number.

1340551404 is an abundant number, since it is smaller than the sum of its proper divisors (2134952516).

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

1340551404 is a wasteful number, since it uses less digits than its factorization.

1340551404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412526 (or 12412518 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1340551404 is about 36613.5412654936. The cubic root of 1340551404 is about 1102.6249717191.

The spelling of 1340551404 in words is "one billion, three hundred forty million, five hundred fifty-one thousand, four hundred four".