940821016 has 32 divisors (see below), whose sum is σ = 1828332000. Its totient is φ = 453327616.

The previous prime is 940821001. The next prime is 940821017. The reversal of 940821016 is 610128049.

It is a happy number.

It is a super-3 number, since 3×940821016³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940821017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128445 + ... + 135571.

It is an arithmetic number, because the mean of its divisors is an integer number (57135375).

Almost surely, 2^940821016 is an apocalyptic number.

It is an amenable number.

940821016 is a deficient number, since it is larger than the sum of its proper divisors (887510984).

940821016 is a wasteful number, since it uses less digits than its factorization.

940821016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 940821016 is about 30672.8058057948. The cubic root of 940821016 is about 979.8712228400.

The spelling of 940821016 in words is "nine hundred forty million, eight hundred twenty-one thousand, sixteen".