70436268 has 144 divisors (see below), whose sum is σ = 219448320. Its totient is φ = 18600192.

The previous prime is 70436263. The next prime is 70436293. The reversal of 70436268 is 86263407.

It is a super-2 number, since 2×70436268² = 9922535699535648, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (70436263) 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, 224880 + ... + 225192.

Almost surely, 2^70436268 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 70436268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109724160).

70436268 is an abundant number, since it is smaller than the sum of its proper divisors (149012052).

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

70436268 is a wasteful number, since it uses less digits than its factorization.

70436268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 70436268 is about 8392.6317684026. The cubic root of 70436268 is about 412.9829407052.

The spelling of 70436268 in words is "seventy million, four hundred thirty-six thousand, two hundred sixty-eight".