70438680 has 256 divisors, whose sum is σ = 263088000. Its totient is φ = 16644096.

The previous prime is 70438661. The next prime is 70438703. The reversal of 70438680 is 8683407.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 407074 + ... + 407246.

Almost surely, 2^70438680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70438680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131544000).

70438680 is an abundant number, since it is smaller than the sum of its proper divisors (192649320).

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

70438680 is a wasteful number, since it uses less digits than its factorization.

70438680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 70438680 is about 8392.7754646482. The cubic root of 70438680 is about 412.9876546758.

The spelling of 70438680 in words is "seventy million, four hundred thirty-eight thousand, six hundred eighty".