33721952040 has 96 divisors (see below), whose sum is σ = 125252974080. Its totient is φ = 7707874176.

The previous prime is 33721952009. The next prime is 33721952059. The reversal of 33721952040 is 4025912733.

It is a super-2 number, since 2×33721952040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 33721951986 and 33721952004.

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, 6688344 + ... + 6693383.

It is an arithmetic number, because the mean of its divisors is an integer number (1304718480).

Almost surely, 2^33721952040 is an apocalyptic number.

33721952040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33721952040 is an abundant number, since it is smaller than the sum of its proper divisors (91531022040).

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

33721952040 is a wasteful number, since it uses less digits than its factorization.

33721952040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381751 (or 13381744 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 33721952040 in words is "thirty-three billion, seven hundred twenty-one million, nine hundred fifty-two thousand, forty".