33400461 has 16 divisors (see below), whose sum is σ = 49636800. Its totient is φ = 19853568.

The previous prime is 33400453. The next prime is 33400469. The reversal of 33400461 is 16400433.

It is an interprime number because it is at equal distance from previous prime (33400453) and next prime (33400469).

It is not a de Polignac number, because 33400461 - 2³ = 33400453 is a prime.

It is a super-2 number, since 2×33400461² = 2231181590025042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33400469) 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, 16266 + ... + 18203.

It is an arithmetic number, because the mean of its divisors is an integer number (3102300).

Almost surely, 2^33400461 is an apocalyptic number.

It is an amenable number.

33400461 is a deficient number, since it is larger than the sum of its proper divisors (16236339).

33400461 is a wasteful number, since it uses less digits than its factorization.

33400461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34508.

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

The square root of 33400461 is about 5779.3131944895. The cubic root of 33400461 is about 322.0456868420.

Adding to 33400461 its reverse (16400433), we get a palindrome (49800894).

The spelling of 33400461 in words is "thirty-three million, four hundred thousand, four hundred sixty-one".