34445140 has 24 divisors (see below), whose sum is σ = 72892512. Its totient is φ = 13671840.

The previous prime is 34445129. The next prime is 34445167. The reversal of 34445140 is 4154443.

It is a congruent number.

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, 3954 + ... + 9193.

It is an arithmetic number, because the mean of its divisors is an integer number (3037188).

Almost surely, 2^34445140 is an apocalyptic number.

It is an amenable number.

34445140 is an abundant number, since it is smaller than the sum of its proper divisors (38447372).

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

34445140 is a wasteful number, since it uses less digits than its factorization.

34445140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287 (or 13285 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 34445140 is about 5868.9982109386. The cubic root of 34445140 is about 325.3688593106.

Adding to 34445140 its reverse (4154443), we get a palindrome (38599583).

The spelling of 34445140 in words is "thirty-four million, four hundred forty-five thousand, one hundred forty".