34420840 has 32 divisors (see below), whose sum is σ = 77726880. Its totient is φ = 13718592.

The previous prime is 34420829. The next prime is 34420889. The reversal of 34420840 is 4802443.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10879 + ... + 13681.

It is an arithmetic number, because the mean of its divisors is an integer number (2428965).

Almost surely, 2^34420840 is an apocalyptic number.

It is an amenable number.

34420840 is an abundant number, since it is smaller than the sum of its proper divisors (43306040).

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

34420840 is a wasteful number, since it uses less digits than its factorization.

34420840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3117 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 34420840 is about 5866.9276457103. The cubic root of 34420840 is about 325.2923286954.

The spelling of 34420840 in words is "thirty-four million, four hundred twenty thousand, eight hundred forty".