70782426 has 96 divisors (see below), whose sum is σ = 182564928. Its totient is φ = 19537920.

The previous prime is 70782421. The next prime is 70782451. The reversal of 70782426 is 62428707.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70782421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275290 + ... + 275546.

It is an arithmetic number, because the mean of its divisors is an integer number (1901718).

Almost surely, 2^70782426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70782426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91282464).

70782426 is an abundant number, since it is smaller than the sum of its proper divisors (111782502).

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

70782426 is a wasteful number, since it uses less digits than its factorization.

70782426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 70782426 is about 8413.2292254520. The cubic root of 70782426 is about 413.6583683075.

The spelling of 70782426 in words is "seventy million, seven hundred eighty-two thousand, four hundred twenty-six".