742006128 has 40 divisors (see below), whose sum is σ = 2000193408. Its totient is φ = 236581312.

The previous prime is 742006121. The next prime is 742006147. The reversal of 742006128 is 821600247.

It is a junction number, because it is equal to n+sod(n) for n = 742006095 and 742006104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742006121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334950 + ... + 337157.

Almost surely, 2^742006128 is an apocalyptic number.

It is an amenable number.

742006128 is an abundant number, since it is smaller than the sum of its proper divisors (1258187280).

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

742006128 is a wasteful number, since it uses less digits than its factorization.

742006128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672141 (or 672135 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 742006128 is about 27239.7894264989. The cubic root of 742006128 is about 905.3207975188.

The spelling of 742006128 in words is "seven hundred forty-two million, six thousand, one hundred twenty-eight".