1994460570 has 160 divisors (see below), whose sum is σ = 5711395536. Its totient is φ = 497664000.

The previous prime is 1994460551. The next prime is 1994460577. The reversal of 1994460570 is 750644991.

1994460570 is a `hidden beast` number, since 19 + 9 + 4 + 4 + 60 + 570 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1707259761 + 287200809 = 41319^2 + 16947^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1994460577) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3318270 + ... + 3318870.

Almost surely, 2^1994460570 is an apocalyptic number.

1994460570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994460570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2855697768).

1994460570 is an abundant number, since it is smaller than the sum of its proper divisors (3716934966).

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

1994460570 is a wasteful number, since it uses less digits than its factorization.

1994460570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1994460570 is about 44659.3838963325. The cubic root of 1994460570 is about 1258.7567669114.

The spelling of 1994460570 in words is "one billion, nine hundred ninety-four million, four hundred sixty thousand, five hundred seventy".