1011201440 has 48 divisors (see below), whose sum is σ = 2492840448. Its totient is φ = 386893056.

The previous prime is 1011201439. The next prime is 1011201461. The reversal of 1011201440 is 441021101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133712 + ... + 141071.

It is an arithmetic number, because the mean of its divisors is an integer number (51934176).

Almost surely, 2^1011201440 is an apocalyptic number.

1011201440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011201440 is an abundant number, since it is smaller than the sum of its proper divisors (1481639008).

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

1011201440 is a wasteful number, since it uses less digits than its factorization.

1011201440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274821 (or 274813 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1011201440 is about 31799.3937049120. The cubic root of 1011201440 is about 1003.7199580861.

Adding to 1011201440 its reverse (441021101), we get a palindrome (1452222541).

The spelling of 1011201440 in words is "one billion, eleven million, two hundred one thousand, four hundred forty".