378957001 has 6 divisors (see below), whose sum is σ = 383584730. Its totient is φ = 374384448.

The previous prime is 378956987. The next prime is 378957011. The reversal of 378957001 is 100759873.

It can be written as a sum of positive squares in only one way, i.e., 358117776 + 20839225 = 18924^2 + 4565^2 .

It is not a de Polignac number, because 378957001 - 2¹⁵ = 378924233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378957011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20616 + ... + 34393.

Almost surely, 2^378957001 is an apocalyptic number.

It is an amenable number.

378957001 is a deficient number, since it is larger than the sum of its proper divisors (4627729).

378957001 is an frugal number, since it uses more digits than its factorization.

378957001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55175 (or 55092 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 378957001 is about 19466.8179474715. The cubic root of 378957001 is about 723.6523524775.

The spelling of 378957001 in words is "three hundred seventy-eight million, nine hundred fifty-seven thousand, one".