34478872 has 16 divisors (see below), whose sum is σ = 64728000. Its totient is φ = 17218080.

The previous prime is 34478869. The next prime is 34478879. The reversal of 34478872 is 27887443.

It is a super-2 number, since 2×34478872² = 2377585228784768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34478879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5754 + ... + 10102.

It is an arithmetic number, because the mean of its divisors is an integer number (4045500).

Almost surely, 2^34478872 is an apocalyptic number.

It is an amenable number.

34478872 is a deficient number, since it is larger than the sum of its proper divisors (30249128).

34478872 is a wasteful number, since it uses less digits than its factorization.

34478872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346 (or 5342 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 34478872 is about 5871.8712519945. The cubic root of 34478872 is about 325.4750355047.

The spelling of 34478872 in words is "thirty-four million, four hundred seventy-eight thousand, eight hundred seventy-two".