407401556 has 12 divisors (see below), whose sum is σ = 716536800. Its totient is φ = 202676760.

The previous prime is 407401531. The next prime is 407401559. The reversal of 407401556 is 655104704.

It is a super-2 number, since 2×407401556² = 331952055662442272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407401559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255110 + ... + 256701.

It is an arithmetic number, because the mean of its divisors is an integer number (59711400).

Almost surely, 2^407401556 is an apocalyptic number.

It is an amenable number.

407401556 is a deficient number, since it is larger than the sum of its proper divisors (309135244).

407401556 is a wasteful number, since it uses less digits than its factorization.

407401556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512014 (or 512012 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 407401556 is about 20184.1907442434. The cubic root of 407401556 is about 741.3231477267.

The spelling of 407401556 in words is "four hundred seven million, four hundred one thousand, five hundred fifty-six".