2196264540 has 48 divisors (see below), whose sum is σ = 6361598880. Its totient is φ = 565474560.

The previous prime is 2196264523. The next prime is 2196264541. The reversal of 2196264540 is 454626912.

It is a happy number.

It is a super-2 number, since 2×2196264540² = 9647155859322823200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196264541) 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, 629371 + ... + 632850.

It is an arithmetic number, because the mean of its divisors is an integer number (132533310).

Almost surely, 2^2196264540 is an apocalyptic number.

2196264540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2196264540 is an abundant number, since it is smaller than the sum of its proper divisors (4165334340).

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

2196264540 is a wasteful number, since it uses less digits than its factorization.

2196264540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262262 (or 1262260 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2196264540 is about 46864.3205434582. The cubic root of 2196264540 is about 1299.8549226663.

The spelling of 2196264540 in words is "two billion, one hundred ninety-six million, two hundred sixty-four thousand, five hundred forty".