70814380 has 144 divisors (see below), whose sum is σ = 191104704. Its totient is φ = 21565440.

The previous prime is 70814353. The next prime is 70814399. The reversal of 70814380 is 8341807.

70814380 = 145² + 146² + ... + 599².

It is a happy number.

It is a super-3 number, since 3×70814380³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 970024 + ... + 970096.

It is an arithmetic number, because the mean of its divisors is an integer number (1327116).

Almost surely, 2^70814380 is an apocalyptic number.

70814380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70814380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95552352).

70814380 is an abundant number, since it is smaller than the sum of its proper divisors (120290324).

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

70814380 is a wasteful number, since it uses less digits than its factorization.

70814380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 70814380 is about 8415.1280441833. The cubic root of 70814380 is about 413.7206062183.

The spelling of 70814380 in words is "seventy million, eight hundred fourteen thousand, three hundred eighty".