34400145 has 32 divisors (see below), whose sum is σ = 60181632. Its totient is φ = 16676352.

The previous prime is 34400143. The next prime is 34400147. The reversal of 34400145 is 54100443.

It is an interprime number because it is at equal distance from previous prime (34400143) and next prime (34400147).

It is not a de Polignac number, because 34400145 - 2¹ = 34400143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34400141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11749 + ... + 14381.

It is an arithmetic number, because the mean of its divisors is an integer number (1880676).

Almost surely, 2^34400145 is an apocalyptic number.

It is an amenable number.

34400145 is a deficient number, since it is larger than the sum of its proper divisors (25781487).

34400145 is a wasteful number, since it uses less digits than its factorization.

34400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 34400145 is about 5865.1636805804. The cubic root of 34400145 is about 325.2271232913.

Adding to 34400145 its reverse (54100443), we get a palindrome (88500588).

The spelling of 34400145 in words is "thirty-four million, four hundred thousand, one hundred forty-five".