967521940 has 48 divisors (see below), whose sum is σ = 2533152384. Its totient is φ = 301564800.

The previous prime is 967521923. The next prime is 967521959. The reversal of 967521940 is 49125769.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 312591 + ... + 315670.

It is an arithmetic number, because the mean of its divisors is an integer number (52774008).

Almost surely, 2^967521940 is an apocalyptic number.

It is an amenable number.

967521940 is an abundant number, since it is smaller than the sum of its proper divisors (1565630444).

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

967521940 is a wasteful number, since it uses less digits than its factorization.

967521940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628288 (or 628286 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 967521940 is about 31105.0147082428. The cubic root of 967521940 is about 989.0546156524.

The spelling of 967521940 in words is "nine hundred sixty-seven million, five hundred twenty-one thousand, nine hundred forty".