94021636 has 24 divisors (see below), whose sum is σ = 172395776. Its totient is φ = 44811360.

The previous prime is 94021621. The next prime is 94021637. The reversal of 94021636 is 63612049.

It is a super-2 number, since 2×94021636² = 17680136072232992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 94021598 and 94021607.

It is not an unprimeable number, because it can be changed into a prime (94021637) 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, 2650 + ... + 13966.

Almost surely, 2^94021636 is an apocalyptic number.

It is an amenable number.

94021636 is a deficient number, since it is larger than the sum of its proper divisors (78374140).

94021636 is a wasteful number, since it uses less digits than its factorization.

94021636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11419 (or 11417 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 94021636 is about 9696.4754421388. The cubic root of 94021636 is about 454.7184765747.

The spelling of 94021636 in words is "ninety-four million, twenty-one thousand, six hundred thirty-six".