994172000438 has 32 divisors (see below), whose sum is σ = 1531893772800. Its totient is φ = 483665880544.

The previous prime is 994172000429. The next prime is 994172000443. The reversal of 994172000438 is 834000271499.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 994172000392 and 994172000401.

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, 126981908 + ... + 126989736.

It is an arithmetic number, because the mean of its divisors is an integer number (47871680400).

Almost surely, 2^994172000438 is an apocalyptic number.

994172000438 is a deficient number, since it is larger than the sum of its proper divisors (537721772362).

994172000438 is a wasteful number, since it uses less digits than its factorization.

994172000438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15604.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 994172000438 in words is "nine hundred ninety-four billion, one hundred seventy-two million, four hundred thirty-eight", and thus it is an aban number.