70740381 has 8 divisors (see below), whose sum is σ = 94526080. Its totient is φ = 47057472.

The previous prime is 70740379. The next prime is 70740389. The reversal of 70740381 is 18304707.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70740381 - 2¹ = 70740379 is a prime.

It is a super-2 number, since 2×70740381² = 10008403008050322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70740389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24076 + ... + 26853.

It is an arithmetic number, because the mean of its divisors is an integer number (11815760).

Almost surely, 2^70740381 is an apocalyptic number.

It is an amenable number.

70740381 is a deficient number, since it is larger than the sum of its proper divisors (23785699).

70740381 is a wasteful number, since it uses less digits than its factorization.

70740381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51395.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 70740381 is about 8410.7301109951. The cubic root of 70740381 is about 413.5764472625.

The spelling of 70740381 in words is "seventy million, seven hundred forty thousand, three hundred eighty-one".