33428706 has 32 divisors (see below), whose sum is σ = 72178560. Its totient is φ = 10289664.

The previous prime is 33428693. The next prime is 33428719. The reversal of 33428706 is 60782433.

It is an interprime number because it is at equal distance from previous prime (33428693) and next prime (33428719).

It is a super-2 number, since 2×33428706² = 2234956769668872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175 + ... + 8178.

It is an arithmetic number, because the mean of its divisors is an integer number (2255580).

Almost surely, 2^33428706 is an apocalyptic number.

33428706 is an abundant number, since it is smaller than the sum of its proper divisors (38749854).

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

33428706 is a wasteful number, since it uses less digits than its factorization.

33428706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410.

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

The square root of 33428706 is about 5781.7563075591. The cubic root of 33428706 is about 322.1364402558.

The spelling of 33428706 in words is "thirty-three million, four hundred twenty-eight thousand, seven hundred six".