403264121 has 8 divisors (see below), whose sum is σ = 442479240. Its totient is φ = 365219712.

The previous prime is 403264109. The next prime is 403264153. The reversal of 403264121 is 121462304.

It can be written as a sum of positive squares in 4 ways, for example, as 164994025 + 238270096 = 12845^2 + 15436^2 .

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

It is not a de Polignac number, because 403264121 - 2²² = 399069817 is a prime.

It is a super-3 number, since 3×403264121³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403264181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291956 + ... + 293333.

It is an arithmetic number, because the mean of its divisors is an integer number (55309905).

Almost surely, 2^403264121 is an apocalyptic number.

It is an amenable number.

403264121 is a deficient number, since it is larger than the sum of its proper divisors (39215119).

403264121 is a wasteful number, since it uses less digits than its factorization.

403264121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585355.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 403264121 is about 20081.4372244618. The cubic root of 403264121 is about 738.8050601472.

The spelling of 403264121 in words is "four hundred three million, two hundred sixty-four thousand, one hundred twenty-one".