33400641 has 8 divisors (see below), whose sum is σ = 44567200. Its totient is φ = 22250592.

The previous prime is 33400607. The next prime is 33400643. The reversal of 33400641 is 14600433.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-33400641 is a prime.

It is a super-2 number, since 2×33400641² = 2231205638421762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33400643) 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, 1821 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (5570900).

Almost surely, 2^33400641 is an apocalyptic number.

It is an amenable number.

33400641 is a deficient number, since it is larger than the sum of its proper divisors (11166559).

33400641 is a wasteful number, since it uses less digits than its factorization.

33400641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 33400641 is about 5779.3287672532. The cubic root of 33400641 is about 322.0462653582.

The spelling of 33400641 in words is "thirty-three million, four hundred thousand, six hundred forty-one".