1018955432 has 64 divisors (see below), whose sum is σ = 2148854400. Its totient is φ = 448899840.

The previous prime is 1018955419. The next prime is 1018955449. The reversal of 1018955432 is 2345598101.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214069 + ... + 1214907.

It is an arithmetic number, because the mean of its divisors is an integer number (33575850).

Almost surely, 2^1018955432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1018955432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1074427200).

1018955432 is an abundant number, since it is smaller than the sum of its proper divisors (1129898968).

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

1018955432 is a wasteful number, since it uses less digits than its factorization.

1018955432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 1018955432 is about 31921.0813100058. The cubic root of 1018955432 is about 1006.2789693600.

The spelling of 1018955432 in words is "one billion, eighteen million, nine hundred fifty-five thousand, four hundred thirty-two".