34342140 has 72 divisors (see below), whose sum is σ = 111866832. Its totient is φ = 7848960.

The previous prime is 34342129. The next prime is 34342153. The reversal of 34342140 is 4124343.

34342140 = 78² + 79² + ... + 469².

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2901 + ... + 8780.

It is an arithmetic number, because the mean of its divisors is an integer number (1553706).

Almost surely, 2^34342140 is an apocalyptic number.

34342140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34342140 is an abundant number, since it is smaller than the sum of its proper divisors (77524692).

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

34342140 is a wasteful number, since it uses less digits than its factorization.

34342140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707 (or 11698 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 34342140 is about 5860.2167195420. The cubic root of 34342140 is about 325.0442227792.

Adding to 34342140 its reverse (4124343), we get a palindrome (38466483).

The spelling of 34342140 in words is "thirty-four million, three hundred forty-two thousand, one hundred forty".