540626969 has 4 divisors (see below), whose sum is σ = 569081040. Its totient is φ = 512172900.

The previous prime is 540626963. The next prime is 540626987. The reversal of 540626969 is 969626045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 540626969 - 2²⁰ = 539578393 is a prime.

It is a super-2 number, since 2×540626969² = 584555039220253922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540626963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14227007 + ... + 14227044.

It is an arithmetic number, because the mean of its divisors is an integer number (142270260).

Almost surely, 2^540626969 is an apocalyptic number.

It is an amenable number.

540626969 is a deficient number, since it is larger than the sum of its proper divisors (28454071).

540626969 is a wasteful number, since it uses less digits than its factorization.

540626969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28454070.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 540626969 is about 23251.3863887726. The cubic root of 540626969 is about 814.6403215478.

The spelling of 540626969 in words is "five hundred forty million, six hundred twenty-six thousand, nine hundred sixty-nine".