30836742 has 32 divisors (see below), whose sum is σ = 65772000. Its totient is φ = 9604608.

The previous prime is 30836737. The next prime is 30836749. The reversal of 30836742 is 24763803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30836749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14184 + ... + 16212.

It is an arithmetic number, because the mean of its divisors is an integer number (2055375).

Almost surely, 2^30836742 is an apocalyptic number.

30836742 is an abundant number, since it is smaller than the sum of its proper divisors (34935258).

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

30836742 is a wasteful number, since it uses less digits than its factorization.

30836742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 30836742 is about 5553.0840080085. The cubic root of 30836742 is about 313.5856367827.

The spelling of 30836742 in words is "thirty million, eight hundred thirty-six thousand, seven hundred forty-two".