2203154540 has 48 divisors (see below), whose sum is σ = 4670834112. Its totient is φ = 872871936.

The previous prime is 2203154537. The next prime is 2203154561. The reversal of 2203154540 is 454513022.

It is a happy number.

It is a super-2 number, since 2×2203154540² = 9707779854245223200, which contains 22 as substring.

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, 2254532 + ... + 2255508.

It is an arithmetic number, because the mean of its divisors is an integer number (97309044).

Almost surely, 2^2203154540 is an apocalyptic number.

2203154540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2203154540 is an abundant number, since it is smaller than the sum of its proper divisors (2467679572).

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

2203154540 is a wasteful number, since it uses less digits than its factorization.

2203154540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946 (or 1944 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2203154540 is about 46937.7730617889. The cubic root of 2203154540 is about 1301.2127814487.

Adding to 2203154540 its reverse (454513022), we get a palindrome (2657667562).

The spelling of 2203154540 in words is "two billion, two hundred three million, one hundred fifty-four thousand, five hundred forty".