70418381 has 8 divisors (see below), whose sum is σ = 76980000. Its totient is φ = 63883440.

The previous prime is 70418377. The next prime is 70418393. The reversal of 70418381 is 18381407.

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

It is a cyclic number.

It is not a de Polignac number, because 70418381 - 2² = 70418377 is a prime.

It is a super-2 number, since 2×70418381² = 9917496765322322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70418371) 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, 926 + ... + 11903.

It is an arithmetic number, because the mean of its divisors is an integer number (9622500).

Almost surely, 2^70418381 is an apocalyptic number.

It is an amenable number.

70418381 is a deficient number, since it is larger than the sum of its proper divisors (6561619).

70418381 is a wasteful number, since it uses less digits than its factorization.

70418381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 70418381 is about 8391.5660636141. The cubic root of 70418381 is about 412.9479793069.

Adding to 70418381 its reverse (18381407), we get a palindrome (88799788).

The spelling of 70418381 in words is "seventy million, four hundred eighteen thousand, three hundred eighty-one".