70123432 has 8 divisors (see below), whose sum is σ = 131481450. Its totient is φ = 35061712.

The previous prime is 70123409. The next prime is 70123439. The reversal of 70123432 is 23432107.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 18369796 = 7194^2 + 4286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70123439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4382707 + ... + 4382722.

Almost surely, 2^70123432 is an apocalyptic number.

It is an amenable number.

70123432 is a deficient number, since it is larger than the sum of its proper divisors (61358018).

70123432 is a wasteful number, since it uses less digits than its factorization.

70123432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765435 (or 8765431 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 70123432 is about 8373.9734893299. The cubic root of 70123432 is about 412.3706251148.

Adding to 70123432 its reverse (23432107), we get a palindrome (93555539).

The spelling of 70123432 in words is "seventy million, one hundred twenty-three thousand, four hundred thirty-two".