34640405 has 8 divisors (see below), whose sum is σ = 41616384. Its totient is φ = 27680400.

The previous prime is 34640383. The next prime is 34640447. The reversal of 34640405 is 50404643.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34640405 - 2¹⁴ = 34624021 is a prime.

It is a Duffinian number.

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, 1460 + ... + 8450.

It is an arithmetic number, because the mean of its divisors is an integer number (5202048).

Almost surely, 2^34640405 is an apocalyptic number.

It is an amenable number.

34640405 is a deficient number, since it is larger than the sum of its proper divisors (6975979).

34640405 is an equidigital number, since it uses as much as digits as its factorization.

34640405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7987.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 34640405 is about 5885.6099938749. The cubic root of 34640405 is about 325.9825256921.

The spelling of 34640405 in words is "thirty-four million, six hundred forty thousand, four hundred five".