136420824 has 32 divisors (see below), whose sum is σ = 343350000. Its totient is φ = 45167232.

The previous prime is 136420807. The next prime is 136420831. The reversal of 136420824 is 428024631.

It is a super-2 number, since 2×136420824² = 37221282441677952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136420791 and 136420800.

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, 15499 + ... + 22650.

Almost surely, 2^136420824 is an apocalyptic number.

It is an amenable number.

136420824 is an abundant number, since it is smaller than the sum of its proper divisors (206929176).

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

136420824 is a wasteful number, since it uses less digits than its factorization.

136420824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38307 (or 38303 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 136420824 is about 11679.9325340517. The cubic root of 136420824 is about 514.7861920783.

The spelling of 136420824 in words is "one hundred thirty-six million, four hundred twenty thousand, eight hundred twenty-four".