1140401040 has 80 divisors (see below), whose sum is σ = 3538487808. Its totient is φ = 303827968.

The previous prime is 1140401027. The next prime is 1140401047. The reversal of 1140401040 is 401040411.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1140401047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515617 + ... + 517823.

Almost surely, 2^1140401040 is an apocalyptic number.

1140401040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140401040 is an abundant number, since it is smaller than the sum of its proper divisors (2398086768).

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

1140401040 is a wasteful number, since it uses less digits than its factorization.

1140401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1140401040 is about 33769.8243998988. The cubic root of 1140401040 is about 1044.7664107063.

Adding to 1140401040 its reverse (401040411), we get a palindrome (1541441451).

The spelling of 1140401040 in words is "one billion, one hundred forty million, four hundred one thousand, forty".