978413250 has 32 divisors (see below), whose sum is σ = 2442121344. Its totient is φ = 260910000.

The previous prime is 978413239. The next prime is 978413279. The reversal of 978413250 is 52314879.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 978413199 and 978413208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651526 + ... + 653025.

It is an arithmetic number, because the mean of its divisors is an integer number (76316292).

Almost surely, 2^978413250 is an apocalyptic number.

978413250 is an abundant number, since it is smaller than the sum of its proper divisors (1463708094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978413250 is a wasteful number, since it uses less digits than its factorization.

978413250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304571 (or 1304561 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 978413250 is about 31279.5979833501. The cubic root of 978413250 is about 992.7520102314.

The spelling of 978413250 in words is "nine hundred seventy-eight million, four hundred thirteen thousand, two hundred fifty".