70732426 has 4 divisors (see below), whose sum is σ = 106098642. Its totient is φ = 35366212.

The previous prime is 70732423. The next prime is 70732433. The reversal of 70732426 is 62423707.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70543201 + 189225 = 8399^2 + 435^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (70732423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17683105 + ... + 17683108.

Almost surely, 2^70732426 is an apocalyptic number.

70732426 is a deficient number, since it is larger than the sum of its proper divisors (35366216).

70732426 is a wasteful number, since it uses less digits than its factorization.

70732426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35366215.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 70732426 is about 8410.2571898843. The cubic root of 70732426 is about 413.5609439817.

It can be divided in two parts, 707 and 32426, that added together give a palindrome (33133).

The spelling of 70732426 in words is "seventy million, seven hundred thirty-two thousand, four hundred twenty-six".