540402020235 has 96 divisors (see below), whose sum is σ = 1173068402688. Its totient is φ = 223575240960.

The previous prime is 540402020233. The next prime is 540402020237. The reversal of 540402020235 is 532020204045.

It is a happy number.

540402020235 is a `hidden beast` number, since 5 + 4 + 0 + 402 + 0 + 20 + 235 = 666.

It is an interprime number because it is at equal distance from previous prime (540402020233) and next prime (540402020237).

It is not a de Polignac number, because 540402020235 - 2¹ = 540402020233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540402020199 and 540402020208.

It is not an unprimeable number, because it can be changed into a prime (540402020233) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 423009 + ... + 1122381.

It is an arithmetic number, because the mean of its divisors is an integer number (12219462528).

Almost surely, 2^540402020235 is an apocalyptic number.

540402020235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

540402020235 is an abundant number, since it is smaller than the sum of its proper divisors (632666382453).

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

540402020235 is a wasteful number, since it uses less digits than its factorization.

540402020235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699625 (or 699622 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The spelling of 540402020235 in words is "five hundred forty billion, four hundred two million, twenty thousand, two hundred thirty-five".