34380491 has 4 divisors (see below), whose sum is σ = 34701912. Its totient is φ = 34059072.

The previous prime is 34380487. The next prime is 34380499. The reversal of 34380491 is 19408343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19408343 = 23 ⋅843841.

It is a cyclic number.

It is not a de Polignac number, because 34380491 - 2² = 34380487 is a prime.

It is a super-2 number, since 2×34380491² = 2364036322802162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34380499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160550 + ... + 160763.

It is an arithmetic number, because the mean of its divisors is an integer number (8675478).

Almost surely, 2^34380491 is an apocalyptic number.

34380491 is a deficient number, since it is larger than the sum of its proper divisors (321421).

34380491 is a wasteful number, since it uses less digits than its factorization.

34380491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321420.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 34380491 is about 5863.4879551339. The cubic root of 34380491 is about 325.1651736338.

The spelling of 34380491 in words is "thirty-four million, three hundred eighty thousand, four hundred ninety-one".