245908478 has 8 divisors (see below), whose sum is σ = 368946480. Its totient is φ = 122926320.

The previous prime is 245908463. The next prime is 245908493. The reversal of 245908478 is 874809542.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (245908463) and next prime (245908493).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 22178.

It is an arithmetic number, because the mean of its divisors is an integer number (46118310).

Almost surely, 2^245908478 is an apocalyptic number.

245908478 is a deficient number, since it is larger than the sum of its proper divisors (123038002).

245908478 is a wasteful number, since it uses less digits than its factorization.

245908478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27922.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 245908478 is about 15681.4692551432. The cubic root of 245908478 is about 626.5049412278.

The spelling of 245908478 in words is "two hundred forty-five million, nine hundred eight thousand, four hundred seventy-eight".