33379749 has 32 divisors (see below), whose sum is σ = 54163200. Its totient is φ = 20191680.

The previous prime is 33379747. The next prime is 33379763. The reversal of 33379749 is 94797333.

It is not a de Polignac number, because 33379749 - 2¹ = 33379747 is a prime.

It is a super-2 number, since 2×33379749² = 2228415286606002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33379747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20632 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (1692600).

Almost surely, 2^33379749 is an apocalyptic number.

33379749 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

33379749 is a deficient number, since it is larger than the sum of its proper divisors (20783451).

33379749 is a wasteful number, since it uses less digits than its factorization.

33379749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1636 counting only the distinct ones).

The product of its digits is 428652, while the sum is 45.

The square root of 33379749 is about 5777.5210081834. The cubic root of 33379749 is about 321.9791050315.

The spelling of 33379749 in words is "thirty-three million, three hundred seventy-nine thousand, seven hundred forty-nine".