70436530 has 16 divisors (see below), whose sum is σ = 130213080. Its totient is φ = 27412992.

The previous prime is 70436521. The next prime is 70436609. The reversal of 70436530 is 3563407.

It can be written as a sum of positive squares in 4 ways, for example, as 46826649 + 23609881 = 6843^2 + 4859^2 .

It is a super-2 number, since 2×70436530² = 9922609516881800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94815 + ... + 95554.

Almost surely, 2^70436530 is an apocalyptic number.

70436530 is a deficient number, since it is larger than the sum of its proper divisors (59776550).

70436530 is a wasteful number, since it uses less digits than its factorization.

70436530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190413.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 70436530 is about 8392.6473773178. The cubic root of 70436530 is about 412.9834527586.

Adding to 70436530 its reverse (3563407), we get a palindrome (73999937).

The spelling of 70436530 in words is "seventy million, four hundred thirty-six thousand, five hundred thirty".