425884378 has 4 divisors (see below), whose sum is σ = 638826570. Its totient is φ = 212942188.

The previous prime is 425884369. The next prime is 425884387. The reversal of 425884378 is 873488524.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (425884369) and next prime (425884387).

It can be written as a sum of positive squares in only one way, i.e., 268206129 + 157678249 = 16377^2 + 12557^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106471093 + ... + 106471096.

Almost surely, 2^425884378 is an apocalyptic number.

425884378 is a deficient number, since it is larger than the sum of its proper divisors (212942192).

425884378 is a wasteful number, since it uses less digits than its factorization.

425884378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212942191.

The product of its digits is 1720320, while the sum is 49.

The square root of 425884378 is about 20636.9662983686. The cubic root of 425884378 is about 752.3684404835.

The spelling of 425884378 in words is "four hundred twenty-five million, eight hundred eighty-four thousand, three hundred seventy-eight".