366400378 has 4 divisors (see below), whose sum is σ = 549600570. Its totient is φ = 183200188.

The previous prime is 366400367. The next prime is 366400379. The reversal of 366400378 is 873004663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873004663 = 467 ⋅1869389.

It can be written as a sum of positive squares in only one way, i.e., 255456289 + 110944089 = 15983^2 + 10533^2 .

It is not an unprimeable number, because it can be changed into a prime (366400379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91600093 + ... + 91600096.

Almost surely, 2^366400378 is an apocalyptic number.

366400378 is a deficient number, since it is larger than the sum of its proper divisors (183200192).

366400378 is a wasteful number, since it uses less digits than its factorization.

366400378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183200191.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 366400378 is about 19141.5876562003. The cubic root of 366400378 is about 715.5697468651.

The spelling of 366400378 in words is "three hundred sixty-six million, four hundred thousand, three hundred seventy-eight".