34121940 has 24 divisors (see below), whose sum is σ = 95541600. Its totient is φ = 9099168.

The previous prime is 34121921. The next prime is 34121947. The reversal of 34121940 is 4912143.

It is a self number, because there is not a number n which added to its sum of digits gives 34121940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34121947) 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, 284290 + ... + 284409.

It is an arithmetic number, because the mean of its divisors is an integer number (3980900).

Almost surely, 2^34121940 is an apocalyptic number.

34121940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34121940 is an abundant number, since it is smaller than the sum of its proper divisors (61419660).

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

34121940 is a wasteful number, since it uses less digits than its factorization.

34121940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568711 (or 568709 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 34121940 is about 5841.3988050809. The cubic root of 34121940 is about 324.3480104585.

The spelling of 34121940 in words is "thirty-four million, one hundred twenty-one thousand, nine hundred forty".