1225424386 has 8 divisors (see below), whose sum is σ = 1887816060. Its totient is φ = 596152368.

The previous prime is 1225424341. The next prime is 1225424411. The reversal of 1225424386 is 6834245221.

It can be written as a sum of positive squares in 2 ways, for example, as 1054625625 + 170798761 = 32475^2 + 13069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8279821 + ... + 8279968.

Almost surely, 2^1225424386 is an apocalyptic number.

1225424386 is a deficient number, since it is larger than the sum of its proper divisors (662391674).

1225424386 is a wasteful number, since it uses less digits than its factorization.

1225424386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559828.

The product of its digits is 92160, while the sum is 37.

The square root of 1225424386 is about 35006.0621321508. The cubic root of 1225424386 is about 1070.1110275799. Note that the first 3 decimals are identical.

The spelling of 1225424386 in words is "one billion, two hundred twenty-five million, four hundred twenty-four thousand, three hundred eighty-six".