33421021634 has 48 divisors (see below), whose sum is σ = 68511453696. Its totient is φ = 12019543200.

The previous prime is 33421021597. The next prime is 33421021643. The reversal of 33421021634 is 43612012433.

It is a super-2 number, since 2×33421021634² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33421021597 and 33421021606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1178402 + ... + 1206429.

It is an arithmetic number, because the mean of its divisors is an integer number (1427321952).

Almost surely, 2^33421021634 is an apocalyptic number.

33421021634 is an abundant number, since it is smaller than the sum of its proper divisors (35090432062).

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

33421021634 is a wasteful number, since it uses less digits than its factorization.

33421021634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384871 (or 2384864 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 33421021634 in words is "thirty-three billion, four hundred twenty-one million, twenty-one thousand, six hundred thirty-four".