403401969 has 6 divisors (see below), whose sum is σ = 582691746. Its totient is φ = 268934640.

The previous prime is 403401961. The next prime is 403401983. The reversal of 403401969 is 969104304.

It can be written as a sum of positive squares in only one way, i.e., 299117025 + 104284944 = 17295^2 + 10212^2 .

It is not a de Polignac number, because 403401969 - 2³ = 403401961 is a prime.

It is a super-2 number, since 2×403401969² = 325466297186153922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (403401961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22411212 + ... + 22411229.

It is an arithmetic number, because the mean of its divisors is an integer number (97115291).

Almost surely, 2^403401969 is an apocalyptic number.

It is an amenable number.

403401969 is a deficient number, since it is larger than the sum of its proper divisors (179289777).

403401969 is a wasteful number, since it uses less digits than its factorization.

403401969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822447 (or 44822444 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 403401969 is about 20084.8691556604. The cubic root of 403401969 is about 738.8892326060.

The spelling of 403401969 in words is "four hundred three million, four hundred one thousand, nine hundred sixty-nine".