35442426640 has 80 divisors (see below), whose sum is σ = 84377563776. Its totient is φ = 13837824000.

The previous prime is 35442426599. The next prime is 35442426641. The reversal of 35442426640 is 4662424453.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×35442426640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 35442426593 and 35442426602.

It is not an unprimeable number, because it can be changed into a prime (35442426641) 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, 7156165 + ... + 7161115.

Almost surely, 2^35442426640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35442426640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42188781888).

35442426640 is an abundant number, since it is smaller than the sum of its proper divisors (48935137136).

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

35442426640 is a wasteful number, since it uses less digits than its factorization.

35442426640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

The spelling of 35442426640 in words is "thirty-five billion, four hundred forty-two million, four hundred twenty-six thousand, six hundred forty".