940091540 has 24 divisors (see below), whose sum is σ = 1975768872. Its totient is φ = 375736320.

The previous prime is 940091527. The next prime is 940091543. The reversal of 940091540 is 45190049.

It can be written as a sum of positive squares in 4 ways, for example, as 101525776 + 838565764 = 10076^2 + 28958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 940091497 and 940091506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940091543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7820 + ... + 44060.

It is an arithmetic number, because the mean of its divisors is an integer number (82323703).

Almost surely, 2^940091540 is an apocalyptic number.

It is an amenable number.

940091540 is an abundant number, since it is smaller than the sum of its proper divisors (1035677332).

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

940091540 is a wasteful number, since it uses less digits than its factorization.

940091540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37547 (or 37545 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 940091540 is about 30660.9122499641. The cubic root of 940091540 is about 979.6179060211.

The spelling of 940091540 in words is "nine hundred forty million, ninety-one thousand, five hundred forty".