70542436 has 6 divisors (see below), whose sum is σ = 123449270. Its totient is φ = 35271216.

The previous prime is 70542431. The next prime is 70542443. The reversal of 70542436 is 63424507.

It can be written as a sum of positive squares in only one way, i.e., 52649536 + 17892900 = 7256^2 + 4230^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70542398 and 70542407.

It is not an unprimeable number, because it can be changed into a prime (70542431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8817801 + ... + 8817808.

Almost surely, 2^70542436 is an apocalyptic number.

It is an amenable number.

70542436 is a deficient number, since it is larger than the sum of its proper divisors (52906834).

70542436 is a wasteful number, since it uses less digits than its factorization.

70542436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17635613 (or 17635611 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 70542436 is about 8398.9544587407. The cubic root of 70542436 is about 413.1903317892.

The spelling of 70542436 in words is "seventy million, five hundred forty-two thousand, four hundred thirty-six".