63400378 has 16 divisors (see below), whose sum is σ = 105995520. Its totient is φ = 28264896.

The previous prime is 63400369. The next prime is 63400399. The reversal of 63400378 is 87300436.

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, 48426 + ... + 49717.

It is an arithmetic number, because the mean of its divisors is an integer number (6624720).

Almost surely, 2^63400378 is an apocalyptic number.

63400378 is a deficient number, since it is larger than the sum of its proper divisors (42595142).

63400378 is a wasteful number, since it uses less digits than its factorization.

63400378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98181.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 63400378 is about 7962.4354314494. The cubic root of 63400378 is about 398.7468657360.

The spelling of 63400378 in words is "sixty-three million, four hundred thousand, three hundred seventy-eight".