35021500040 has 16 divisors (see below), whose sum is σ = 78798375180. Its totient is φ = 14008600000.

The previous prime is 35021500021. The next prime is 35021500043. The reversal of 35021500040 is 4000512053.

It can be written as a sum of positive squares in 2 ways, for example, as 31610706436 + 3410793604 = 177794^2 + 58402^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 35021499985 and 35021500021.

It is not an unprimeable number, because it can be changed into a prime (35021500043) 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, 437768711 + ... + 437768790.

Almost surely, 2^35021500040 is an apocalyptic number.

It is an amenable number.

35021500040 is an abundant number, since it is smaller than the sum of its proper divisors (43776875140).

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

35021500040 is a wasteful number, since it uses less digits than its factorization.

35021500040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875537512 (or 875537508 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The spelling of 35021500040 in words is "thirty-five billion, twenty-one million, five hundred thousand, forty".