34321540 has 24 divisors (see below), whose sum is σ = 78628032. Its totient is φ = 12480480.

The previous prime is 34321531. The next prime is 34321541. The reversal of 34321540 is 4512343.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (34321541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77784 + ... + 78223.

It is an arithmetic number, because the mean of its divisors is an integer number (3276168).

Almost surely, 2^34321540 is an apocalyptic number.

It is an amenable number.

34321540 is an abundant number, since it is smaller than the sum of its proper divisors (44306492).

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

34321540 is a wasteful number, since it uses less digits than its factorization.

34321540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156027 (or 156025 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 34321540 is about 5858.4588417091. The cubic root of 34321540 is about 324.9792176060.

Adding to 34321540 its reverse (4512343), we get a palindrome (38833883).

The spelling of 34321540 in words is "thirty-four million, three hundred twenty-one thousand, five hundred forty".