34479945 has 64 divisors (see below), whose sum is σ = 64281600. Its totient is φ = 17521920.

The previous prime is 34479931. The next prime is 34479953. The reversal of 34479945 is 54997443.

It is a happy number.

It is not a de Polignac number, because 34479945 - 2⁶ = 34479881 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 34479945.

It is a congruent number.

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, 436416 + ... + 436494.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^34479945 is an apocalyptic number.

It is an amenable number.

34479945 is a deficient number, since it is larger than the sum of its proper divisors (29801655).

34479945 is a wasteful number, since it uses less digits than its factorization.

34479945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 201 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 34479945 is about 5871.9626190908. The cubic root of 34479945 is about 325.4784117858.

Adding to 34479945 its product of digits (544320), we get a triangular number (35024265 = T₈₃₆₉).

The spelling of 34479945 in words is "thirty-four million, four hundred seventy-nine thousand, nine hundred forty-five".