33940739490 has 128 divisors (see below), whose sum is σ = 98071050240. Its totient is φ = 7343820288.

The previous prime is 33940739477. The next prime is 33940739527. The reversal of 33940739490 is 9493704933.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6872302 + ... + 6877238.

It is an arithmetic number, because the mean of its divisors is an integer number (766180080).

Almost surely, 2^33940739490 is an apocalyptic number.

33940739490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33940739490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49035525120).

33940739490 is an abundant number, since it is smaller than the sum of its proper divisors (64130310750).

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

33940739490 is a wasteful number, since it uses less digits than its factorization.

33940739490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6696.

The product of its (nonzero) digits is 2204496, while the sum is 51.

The spelling of 33940739490 in words is "thirty-three billion, nine hundred forty million, seven hundred thirty-nine thousand, four hundred ninety".