70031412 has 144 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 20211840.

The previous prime is 70031371. The next prime is 70031413. The reversal of 70031412 is 21413007.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70031413) 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, 300448 + ... + 300680.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^70031412 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 70031412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

70031412 is an abundant number, since it is smaller than the sum of its proper divisors (139108428).

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

70031412 is a wasteful number, since it uses less digits than its factorization.

70031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70031412 is about 8368.4772808439. The cubic root of 70031412 is about 412.1901673400.

Adding to 70031412 its reverse (21413007), we get a palindrome (91444419).

The spelling of 70031412 in words is "seventy million, thirty-one thousand, four hundred twelve".