70813380 has 96 divisors (see below), whose sum is σ = 227727360. Its totient is φ = 16260480.

The previous prime is 70813373. The next prime is 70813387. The reversal of 70813380 is 8331807.

It is an interprime number because it is at equal distance from previous prime (70813373) and next prime (70813387).

It is a super-3 number, since 3×70813380³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (70813387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9717 + ... + 15363.

It is an arithmetic number, because the mean of its divisors is an integer number (2372160).

Almost surely, 2^70813380 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 70813380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113863680).

70813380 is an abundant number, since it is smaller than the sum of its proper divisors (156913980).

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

70813380 is a wasteful number, since it uses less digits than its factorization.

70813380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5689 (or 5687 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 70813380 is about 8415.0686271711. The cubic root of 70813380 is about 413.7186587676.

It can be divided in two parts, 70 and 813380, that added together give a triangular number (813450 = T₁₂₇₅).

The spelling of 70813380 in words is "seventy million, eight hundred thirteen thousand, three hundred eighty".