1236425628 has 24 divisors (see below), whose sum is σ = 3010428288. Its totient is φ = 394222576.

The previous prime is 1236425549. The next prime is 1236425777. The reversal of 1236425628 is 8265246321.

It is a congruent number.

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, 2239626 + ... + 2240177.

It is an arithmetic number, because the mean of its divisors is an integer number (125434512).

Almost surely, 2^1236425628 is an apocalyptic number.

It is an amenable number.

1236425628 is an abundant number, since it is smaller than the sum of its proper divisors (1774002660).

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

1236425628 is a wasteful number, since it uses less digits than its factorization.

1236425628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479833 (or 4479831 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 1236425628 is about 35162.8444241930. The cubic root of 1236425628 is about 1073.3037978662.

The spelling of 1236425628 in words is "one billion, two hundred thirty-six million, four hundred twenty-five thousand, six hundred twenty-eight".