1955394432 has 160 divisors (see below), whose sum is σ = 5862450000. Its totient is φ = 646963200.

The previous prime is 1955394421. The next prime is 1955394437. The reversal of 1955394432 is 2344935591.

1955394432 is a `hidden beast` number, since 1 + 9 + 553 + 94 + 4 + 3 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955394437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1564944 + ... + 1566192.

Almost surely, 2^1955394432 is an apocalyptic number.

1955394432 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 1955394432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2931225000).

1955394432 is an abundant number, since it is smaller than the sum of its proper divisors (3907055568).

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

1955394432 is a wasteful number, since it uses less digits than its factorization.

1955394432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1405 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 1955394432 is about 44219.8420621331. The cubic root of 1955394432 is about 1250.4839580968.

The spelling of 1955394432 in words is "one billion, nine hundred fifty-five million, three hundred ninety-four thousand, four hundred thirty-two".