2415406 has 20 divisors (see below), whose sum is σ = 4235112. Its totient is φ = 1033116.

The previous prime is 2415389. The next prime is 2415407. The reversal of 2415406 is 6045142.

It is a super-2 number, since 2×2415406² = 11668372289672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2415407) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4551 + ... + 5053.

2^2415406 is an apocalyptic number.

2415406 is a deficient number, since it is larger than the sum of its proper divisors (1819706).

2415406 is an frugal number, since it uses more digits than its factorization.

2415406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2415406 is about 1554.1576496611. The cubic root of 2415406 is about 134.1724593172.

The spelling of 2415406 in words is "two million, four hundred fifteen thousand, four hundred six".