2906404 has 6 divisors (see below), whose sum is σ = 5086214. Its totient is φ = 1453200.

The previous prime is 2906401. The next prime is 2906429. The reversal of 2906404 is 4046092.

It can be written as a sum of positive squares in only one way, i.e., 2340900 + 565504 = 1530^2 + 752^2 .

It is a super-2 number, since 2×2906404² = 16894368422432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2906401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363297 + ... + 363304.

2^2906404 is an apocalyptic number.

It is an amenable number.

2906404 is a deficient number, since it is larger than the sum of its proper divisors (2179810).

2906404 is a wasteful number, since it uses less digits than its factorization.

2906404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726605 (or 726603 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2906404 is about 1704.8178788363. The cubic root of 2906404 is about 142.7092074301.

The spelling of 2906404 in words is "two million, nine hundred six thousand, four hundred four".