378489701 has 8 divisors (see below), whose sum is σ = 391759320. Its totient is φ = 365234688.

The previous prime is 378489691. The next prime is 378489703. The reversal of 378489701 is 107984873.

It can be written as a sum of positive squares in 4 ways, for example, as 136656100 + 241833601 = 11690^2 + 15551^2 .

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 378489701 - 2²⁶ = 311380837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378489703) 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, 91265 + ... + 95321.

It is an arithmetic number, because the mean of its divisors is an integer number (48969915).

Almost surely, 2^378489701 is an apocalyptic number.

It is an amenable number.

378489701 is a deficient number, since it is larger than the sum of its proper divisors (13269619).

378489701 is a wasteful number, since it uses less digits than its factorization.

378489701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 378489701 is about 19454.8117698424. The cubic root of 378489701 is about 723.3547797209.

The spelling of 378489701 in words is "three hundred seventy-eight million, four hundred eighty-nine thousand, seven hundred one".