1431641952 has 120 divisors (see below), whose sum is σ = 4534404336. Its totient is φ = 440494848.

The previous prime is 1431641929. The next prime is 1431641983. The reversal of 1431641952 is 2591461341.

It is a happy number.

1431641952 is a `hidden beast` number, since 1 + 4 + 3 + 1 + 641 + 9 + 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 an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12453 + ... + 54939.

Almost surely, 2^1431641952 is an apocalyptic number.

1431641952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431641952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267202168).

1431641952 is an abundant number, since it is smaller than the sum of its proper divisors (3102762384).

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

1431641952 is a wasteful number, since it uses less digits than its factorization.

1431641952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42522 (or 42505 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1431641952 is about 37837.0447048921. The cubic root of 1431641952 is about 1127.0542094712.

The spelling of 1431641952 in words is "one billion, four hundred thirty-one million, six hundred forty-one thousand, nine hundred fifty-two".