1341778405 has 8 divisors (see below), whose sum is σ = 1756509984. Its totient is φ = 975838800.

The previous prime is 1341778357. The next prime is 1341778421. The reversal of 1341778405 is 5048771431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1341778405 - 2⁹ = 1341777893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12197931 + ... + 12198040.

It is an arithmetic number, because the mean of its divisors is an integer number (219563748).

Almost surely, 2^1341778405 is an apocalyptic number.

It is an amenable number.

1341778405 is a deficient number, since it is larger than the sum of its proper divisors (414731579).

1341778405 is a wasteful number, since it uses less digits than its factorization.

1341778405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24395987.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1341778405 is about 36630.2935423674. The cubic root of 1341778405 is about 1102.9612784493.

The spelling of 1341778405 in words is "one billion, three hundred forty-one million, seven hundred seventy-eight thousand, four hundred five".