1247070426 has 16 divisors (see below), whose sum is σ = 2850446784. Its totient is φ = 356305824.

The previous prime is 1247070401. The next prime is 1247070431. The reversal of 1247070426 is 6240707421.

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, 14846035 + ... + 14846118.

It is an arithmetic number, because the mean of its divisors is an integer number (178152924).

Almost surely, 2^1247070426 is an apocalyptic number.

1247070426 is an abundant number, since it is smaller than the sum of its proper divisors (1603376358).

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

1247070426 is a wasteful number, since it uses less digits than its factorization.

1247070426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29692165.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 1247070426 is about 35313.8843233083. The cubic root of 1247070426 is about 1076.3751432812.

Adding to 1247070426 its reverse (6240707421), we get a palindrome (7487777847).

The spelling of 1247070426 in words is "one billion, two hundred forty-seven million, seventy thousand, four hundred twenty-six".