3457405 has 16 divisors (see below), whose sum is σ = 4777344. Its totient is φ = 2352960.

The previous prime is 3457403. The next prime is 3457417. The reversal of 3457405 is 5047543.

It is not a de Polignac number, because 3457405 - 2¹ = 3457403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3457403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5770 + ... + 6340.

It is an arithmetic number, because the mean of its divisors is an integer number (298584).

Almost surely, 2^3457405 is an apocalyptic number.

3457405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3457405 is a deficient number, since it is larger than the sum of its proper divisors (1319939).

3457405 is a wasteful number, since it uses less digits than its factorization.

3457405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 3457405 is about 1859.4098526145. The cubic root of 3457405 is about 151.2110115111.

It can be divided in two parts, 345 and 7405, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 3457405 in words is "three million, four hundred fifty-seven thousand, four hundred five".