378741557 has 8 divisors (see below), whose sum is σ = 387403776. Its totient is φ = 370104592.

The previous prime is 378741541. The next prime is 378741577. The reversal of 378741557 is 755147873.

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

It is a cyclic number.

It is not a de Polignac number, because 378741557 - 2⁴ = 378741541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378741577) 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, 25868 + ... + 37770.

It is an arithmetic number, because the mean of its divisors is an integer number (48425472).

Almost surely, 2^378741557 is an apocalyptic number.

It is an amenable number.

378741557 is a deficient number, since it is larger than the sum of its proper divisors (8662219).

378741557 is a wasteful number, since it uses less digits than its factorization.

378741557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627.

The product of its digits is 823200, while the sum is 47.

The square root of 378741557 is about 19461.2835393763. The cubic root of 378741557 is about 723.5151899396.

The spelling of 378741557 in words is "three hundred seventy-eight million, seven hundred forty-one thousand, five hundred fifty-seven".