2403951 has 16 divisors (see below), whose sum is σ = 3537408. Its totient is φ = 1440000.

The previous prime is 2403941. The next prime is 2403959. The reversal of 2403951 is 1593042.

2403951 = 320² + 321² + ... + 341².

It is not a de Polignac number, because 2403951 - 2⁶ = 2403887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826 + ... + 3576.

It is an arithmetic number, because the mean of its divisors is an integer number (221088).

2^2403951 is an apocalyptic number.

2403951 is a deficient number, since it is larger than the sum of its proper divisors (1133457).

2403951 is a wasteful number, since it uses less digits than its factorization.

2403951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2403951 is about 1550.4679938651. The cubic root of 2403951 is about 133.9600200027.

Adding to 2403951 its reverse (1593042), we get a palindrome (3996993).

It can be divided in two parts, 24039 and 51, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 2403951 in words is "two million, four hundred three thousand, nine hundred fifty-one".