431961552 has 80 divisors (see below), whose sum is σ = 1352621760. Its totient is φ = 130896000.

The previous prime is 431961487. The next prime is 431961559. The reversal of 431961552 is 255169134.

431961552 is a `hidden beast` number, since 4 + 31 + 9 + 615 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431961559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40699 + ... + 50202.

It is an arithmetic number, because the mean of its divisors is an integer number (16907772).

Almost surely, 2^431961552 is an apocalyptic number.

It is an amenable number.

431961552 is an abundant number, since it is smaller than the sum of its proper divisors (920660208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431961552 is a wasteful number, since it uses less digits than its factorization.

431961552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90929 (or 90917 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 431961552 is about 20783.6847551150. The cubic root of 431961552 is about 755.9302026769.

The spelling of 431961552 in words is "four hundred thirty-one million, nine hundred sixty-one thousand, five hundred fifty-two".